SCIENTIFIC ABSTRACT SARFIMOV, K.B. - SERAFIMOV, S.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R001547930010-1
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 9, 2001
• Sequence Number: 10
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

ACCESSION NR: AT4013672
B, 25o6/63/OOVOOO/0151/0161
AUTHOR: Serafimov, K. B
TIM: Effect of the nocturnal E layer on night glow
SOURCE: B"lgarska akademiya na naukite, Geofizichen institut, Izv., v. 4, 1963,
151-161
TOPIC TAGS: absorption, D region, E layer, green line, ionization remnant, ionos-
phere, night glow, nocturnal E layer, 0, photodissociation, red line, F layer
~ABSTRACT: In the investigation of night glow, the author notes, corrections have
to be made in measurement results, owing to absorption in the nocturnal E layer and
Ionization remnants in the D region. An analysis is made of the photodissociation
processes in the lower nocturmal Ionosphere and their absorption capacities. An
:explanation is given of certain night-glow phenomena (for example, the anomaly In
,the variations of green line intensity) through the association of ionospheric and
optical processes. An explanation is given of the results of ionospheric investiga-
tions over Sofia at the time of the total solar eclipse (15 Feb 1961)* ionospheric
effects of the corpuscular shadow exist in the F layer and in the nocturnal E layer;
shutting out the corpuscular streams provokes a heightening of electron concentra-
tion in the F layer, and a lowering in the E layer;-these effects result from a
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Acassiou NE: AT4ol3672
negative correlation between the intensity of oxygen lines and maximal electron
:concentration in the F layer; consequently, with the heightening of ionization in
,the F layer owing to the corpuscular eclipse, the brightness of night glow declines
:and, at the same time, electron concentration in the nocturnal E layer will fall.
I avail myself of the occasion to express my gratitude to Herr Gh.-U Wagner of the
Geomagnetisches Institut der DAW (Geomagnetic Institute of the German Academy of
Sciences) in Potsdam for permission to print as yet unpublished results of his
researches. I extend my thanks also to the collectives of the Geofizicha-iya Insti-
~tut pri BAN (Geophysical Institute, Bulgarian Academy of Sciences), the ionospheric
Observatory of the Hydrometeorological Service of the German Democratic Republic in
:Kuhlungsborn, and to the Ionospheric Depar nt of the Hein'rich Hertz Institute in
:Berlin for their friendly discussion and valuable suggestions relating to this work."
.10rig. art. has: 5 formulas, 5 figures, and 1 table.
ASSOCIATION: none
SUBMITMD: 05oct62 DATE AoQ: o4mar64 MEL: 00
.SUB CODE: AS NO W SOV: Oll 0=: 028
-Card. 2/2

SERAFIMOV, K.; SAMAREJIEV, D. I'Samardzhiev 1). 1
- Y
Regularity in the development of ionospheric E2-layer.
Doklady BANI 16 no. 4: 365-368 163.
1. Vorgelegt von Akademiemitglied L. Krastanov 6:rustanov,
L. ).

SERAFRIOV, K.; GORIPOV, N.
Regularity in the change of electronic density in the E layer
over Sofia, 1961-1962. Doklady BAN 16 no.7-1705-708 163.
1. Vorgeleg-b von A&demiemitgliad L.Krastanoy [Krustanov,L.]
Chlen Redaktsionnoy kollegii. i otvetstvennyy redaktor,,
"Doklady Bolgarskoy Akademii nauk".

S~!~AFTIMOV, K.; LUAROV, A.; !,fAC4-i,I, I/
DEJANOV, I.; TOFOVIC,
Venous thrombo-ai-s and ra-liEnant neoplasms. Acta chir. Iugosl.
12 iio.1:33-41 165.
1. Zavod za transfuziju krvi SR Makedonije (v.d. d 4rektora dr.
11. Stoicenska), Hirurska klinika (direktor prof. dr. B. Dragojevic~
17
Ginekolosko-akuserska klinika (direktor prof. dr. A. Cakmakov) i
Interria kliniku (direktor prof. dr. D. Arsov) Medicinskog fakulteta
a Skopju.

-SERAFMOV, --K.; TAUBENHED4, J.
Qaasiperiodic oscillations of electronic density in the
F area of the ionosphere. Doklady BAR 16 no.7r709-71V63-
1. Vorgelegt van Akadew~iemitglied L.Krastanov [Krustanov,L.1;
Ghlen Reda~ktsionnoy kollegii i otv.et-stvennV redaktor,
"Doklad7 I$olgarskoy Akademii-nauk".

SEPAKI/0V K - GOR1110V , N.
~ -~ -, *I
Quiescent changes in the total amcunL o--:' electrons in the F,
ionospheric layer. Doklady BAN 16 no. 8: 809-812 163.
1. Vorgelegt von Akademiamitglied L. Frastanov [Krtstanov,
L.]. Otvetstvennyy redaktor, "Doklady Bolgarskoy
Akademii naulk",

NESTOROV, K.
Influence of altitude variat ons, number of collisons, and
operating frequency on the equivalent concentration of
electrons in the D-region. Doklady BAN 16 no. $:817-820
163.
1. Vorgelegt von Akademiamitglied L. Kraatanov [Krustanov, L.I.
Otvetstvennyy redaktor, "Doklady Bolgarskoy Akademii nauk".

SERAFIMDV, K.; NESTOROV, G.
Method for determining the electron density profile in the P region
of the ionosphere. Geomag. i aer. 3 no.6.-1059-1064 N-D 163.
(MIRA 16:12)
1. Geofizicheskiy institut AN Bolgarskoy Narodnoy Res-publiki.

ACCESSION NRa Ap4m3144 5/0203/64/004/ool/61W/MI4
AUTHORt Serafimovp No Be
TITLE: The .intermediate E F zone of the ionosphere during ths:00Vlete solar
,eclipse of 15 February 1961
C SOURCE.- Geomagnetizm J aeronomiyap Ve 4., no. lp 1964j, 109-U4
TOPIC TAGS: ionosphere., R zonej, F zonej, intermediate 9 F zone,, solar eclipse., R2
P-r-( Bayer, FO layerp critical frequency,, ionospheric reflection
X0.1
ABSTRACT: Investigations (by radio methods) of this intermediate zone from the
earth's surface are possible only when the critical frequencies in the zone (of
the E2 and FO layers) are greater than the critical frequencies of the E layer
and of the shielding frequency of the E. layer. The author-bas studied the
%-Ao- theoretically expected changes in the state of the E2 layer during a solar eclipsep
4 and he has then applied this to results of observations on the intermediate E-F
0002 zone (E2 and FO layers) during the eclipse of 15 February 1961* From an analysis of
control days and of data from a. network of -stations in eastern and central Burope,,
Card 1/2
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T "-TRESS-l.:~---3

S7RAFIMOV5 K,B~
Seventh Conference of luflophys-'cislln of 7~~-.e ~*~
l4oscow. Spisanue Bnll 9 no.3-153-1.55~i -,~,4.
1.

SERA-PIMV, Kiril B.
Ionosphere and it, srudy by verti-al dr-illirg. P-ri-roda. Pulg
13 no. 2366-69 14-r-Ap 164.

ze- ~vlmov, F.
The E-,~�- interse~3t,-,Dn of ionosphere during the '/)tal solwr
eClipse of February 1% 1,961. rr-16-ady B!.N 17 no.lz-29-^2 164
-j")
1. Vorgal P,.,t von Akka,i ed I . Y%ra. s- -,r 1.

The lvdance in tho E layer accoi-
of Lhe oclar ipas of Fohj,~-Uruury 15, 1.96'i Doklady BAN 17
6 - 553-55
"'as

MAHMOVi K.-, NESTOROVj G.
Time vartations of the equivalent- elektron density
In ul- jmo-somi~-.-; region. Doklady BAN 17 no,2:125-
12-7 7-
1. lubm-Itted by Academician L.Krastanov (Krustano- T.),
Renponsible Editor and Member of the Board of Editors,
"Doklady Bolgarskoy akademii nauk".

SERAFIMOV, K.; NESTOROV, G.
Theory of the method of determining electron density distribution
in the ionospheric D region. Doklady BAN 17 no.3:230,-242 '64.
1. Vorgelegt von Akademiemitglied L.Krastanov [Krustanov, L.I.

ME 0 1 C; "I
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17 !" R A F " r,~, "l, r*
Methois of c',.aractar-is'.2-c of t1na. laniza-
tl,-.n and Lalance In tho F, D-yF-r. Poklaey BAN
17 no. 164
1. r,-K%d. ;~. WryjIanovyn I-!

Vallidity range and way cf applicat lon for, tlh,~ method of' de-
'-ermilnin- heiah' of electron dpns~lty -in the
r,-k'!,r..(Iy PAN 17
I,, cz- c.",

L 20356-66 F,:,S E!.jA ft
ACC-NR: 'TF601201,1 SOURCE CODE: BU/001-1/65/018/003/1)211/0214;I
AUMOR: Serafimov. K.
ORG: Institute of Geophysics, BAN
TITIM: Method for the determination of the dynwde contribution and of the componentd,
of the neutra3dzation coefficient within the E-la7er
SOURCE: Bulgarska akademiya na naukdte. Dokladyj v. 18, no- 3. 1965, 211-214
TOPIC TAGS: E layer, ionospheric physics, solar activity
ABSTRACT: The author proved in his earlier papers (see,~e.g., Geofis- pura e appi
57, 1964, no. 1; Izv. Geofiz. in ; Dokl, BAN*
-t BAN, V, 1964, no. 2, 69 17, 1955),
no. 4, 395) the general form of the ionization-neutralization 'balance equation for
the closest reRion of the E-layer
dNm(t)= (t)-div
- q (t) W-V)
d(
with
q (1) q.. cos x (0 (3)
.and
I dA
(for notation explanation see the above-mentioned references). While"-the
Card 1/2

L 203,56-66
-A-C-C__N_R_t-_ - A-P-56-012041
o'divergent term in (1) was neglected during earlier-discussionst some
!peculiarity of the daily course of NmE induced the author to reconsider the
:role of the neglected term, and in t1iia paper he-shows how one can caloulate~
iWith a sufficient accuracy the components of the dynamic contribution
.;~(V , V Vz2).and the recombination coefficients0 a< 2) dpring
zo ZI
the summer months and increased solar activity. This paperwas presented by
Academician L. Krastanov on 25 August 1964. Crig. art'. has: 13 formulas. [JPRSII.:
SUB CODE: 04 SUBM DATE: none ORIG REF': 005 OTH REF: 005
SOV REF: 001
c,,d 2/2 Vmb

_L 34513-66 EWT(1)/FCC
I ACC NR, AP6024743 SOURCE CODE: BU/003-1/65/018/010/0915/09181
AUTHOR: Seraf v
ORG: Geophysical Institute, B&N..
TYI'M: Applicabi1ity of the quasi-stationary approxinsa#on during--atmospheric.
investigations ;;
SOURCO: Bulgarska akade'miya na nau)dta. Doldady, v. 18, no. 10, 1965, 915-918
TOPIC TAGS: atmospheric ionization, atmospheric phenomenon, atmospheric stratifies
ionosphere, ionospheric7olectron density
ABSMCT: I'ho structure of the icnization-noutrali7otion
bal3nce, the dynamics and regularities of the stratified atmospheric layors,
and the influence of the ionospherelt; radio wavo propagation ar2 all usually
studied in the qussi-stationary approximation. Th; use of various uloctron
:and ion density ch3ngos is thus avoided by substituting them by appropriate
coefficients of macrourocesses causing and maintaini'ng tho existence of the
ionosphere. Since the values of such coefficients found in scientific
'literature are very divergentg the author was able, in the present article,
.to carry out only an approxim-3te estimite of the oarts of the ionosphero and
of the spacific periods of tiw for which one can utilize the que'ai-stationAry
.approximsticn. Those results, in turn, determine the regions for which one

L 34513-66
ACC NR- Ap6024743
.0
can asoume as valid numerous known ionoapheric regularities and .1 r which
one can easily find the equivalent cosmi~,Idws involving the maximum electron,
.donpitieo, cri.tical. freq -ab This
"noies, lonospherio Morptjonq. and the like.
paper yas s ted by Academdaian L. Kry ab mov on 14-~une *19~~*' f~ig'. art* in
ssian7 XFRS"
R
u
SUB CODE: 04 / SUBM DATE: none I ORIG REF: 007 / SOV REF: OC4
OM REF: 003

L 3-
--- 3295-66 EWTM GW
ACC NR., AP6011703 SOURCE CODE: UR/0203/66/006/002/0334/0340
AUTHOR: Serafimovj K. B. n~u
ORG: Institut of Geophysics Bulg-arian Academy of Sciences (Institut geofizild, Bolgarskaya.
Akademlya Na R)
TITLE: Dependence of electron concentration in the F1 layer on the zenith angle of the sun
SOURCE: Geomagnetizm i aeronomiya, v. 6, no. 2, 1966, 334-340
TOPIC TAGS: F layer, solar activity, temperature 'gradient
ABSTRACT: In this study the author examines the exponent n of the cosine law of the simple
01-layer in relation to the maximal electron concentration in the F1 layer. Expressions are
given for obtaining n under unsteady conditions and in the presence of temperature gradients
and temperature variations. An analysis of the values of n during the period 1957 - 1964
showed that solar activity had a very weak effect on this exponent. The results showed that
the gradient of the reduced height for the ionized component of the atmosphere is less than
that calculated by the author, whence follows that in the region close to the maximum of the
F1 layer there are appreciable height changes of the mean mass of the ionized component
since the calculations were carried out on the assumption of the constancy of the mass equal
to the mass of atomic oxygen. The results obtained can be explained by the partial
1/2 UDC 550.388.2

L 33295-66
ACC NR: AP6011703
is in
compensation of the temperature gradients by the effect of temporal temperature variations in Im
the presence of a variable mean mass of the iconized medium. Orig. art. has: 6 figures and
,Ind
10 formulas.
SUB CODE: 04 / SUBM DATE: 21Jun65 / ORIG REF: 005 / OTH REF: 008
Card 2/2

ACC NR: AP6029744 SOURCE CODE: BU/0011/66/019/007/09~i&602
AUTHOR: S eraf imov, -K.
ORG; Geophysicsl Institute , Bulgarian Academy of Science
:TITLE: The maximum frequency in space communications
iSOURCE: Bulgarska akademiya na naukite. Doklady, v. 19, no. 7, 1966,
1599-602
I
~,TOPIC TAGS: sonic communication, electromagnetic wave frequency,
quantum mechanical instrument, laser, ionosphere, Doppler effect
:'ABSTRACT: The author considers the maximum and minimum frequencies of
usable electro'magnetic waves in space communications. These frequenciei
,necessarily are limited by various types of absorption in the Earth's
iatmosphere. The author proceeds from the assumption that one of the
points in space is situated either-on the surface of the Earth or at an
l
altitude of 4 to 5 km above it and the other one at a fairly great dis-
!tance in space. The utilization of the transmission-reception point on
ithe Earth's surface impedes the application of frequencies above
3000 111:1c/sec because of the absorption lines of resonance in the spectrum
of the atmospheric molecular components. Vowever, if this point is
!raised to an altitude of 3-5 km above sea level, the upper frequency
ard
C _11

ACC NR,
AP6029744
;limit is expected to increase considerably. The limitation in this case,;'
,i,results from the absorption of ultraviolet and other short-wave radia-
~tion in the ionosphere. Moreover, the.ozonosphere absorbs considerable
!radiation at the wavelength X :S 3000 A. It is therefore held that the
Ilimiting minimum length of the wave is Xmin --z4000 AL This wavelength
ipermits a wide-range utilization of quantum-mechanical devices (lasers
,and masers) with all the resulting advantages for space communications.
Depending on the ratio of the frequency band used and the Doppler effect
shift caused by the moving object, the optimu3'wavelength for laser
i
I .
icommunication should be in the range of 5000 A. It has been established
Ithat there are phenomena in the ionosphere which cause a non-negligible
Iabsorption of short-wa ve radiation. Therefore, the optimum wavelength
iincreases substantially withdistant connections and the lower limit
lof utilized X is subject to significant corrections. The limitations of
ithe.lower ionosphere indicated above are of no importance in case of
spac...e Communication through an intermediate artificail satellite at an
a1titude. of .1000 km. However, when establishing contact with other
-p1; a-aets particularly with Venus, absorption in negative ions must be
Vc,6n~s id e r e d .
It is safe to assume that the integral content of negat e
iv
-and
q7KIS in the Venusian ionosphere is greater than in the terrestrial,
't-hus its effect on space communication-a will be all the more pronounced.,
~;'O` rig. art. has: 9 formulas.
.ISUB CODE: SUBM DATEt none/ OTH REF: 007/ SOV REP: 005

-ACC-NR
AP7000702 SOURCE CODE: BU/0011/66/0191010/0893/0896
AUTHOR: Serafimov, K.; Krivsky,
ORG: Geophysical Institute, Bulgarian Academy of Sciences; Astronomical
Observatory, Ondrejov
TITLE: Effect of superposition of two excessive solar radiations in the middle
,ionosphere
SOURCE: Bulgarskaakademiyananaukite. Doklady, v. 19, no. 10, 1966, 893-896
1
TOPIC TAGS: z:;;i, ionosphere, solar chromosphere, chromospheric eruption,
~4-- ~"' S;;--~ionizing radiation, solar UV radiation, ionosphere
electron density solar radiation
ABSTRACT: A study was made of six chromospheric eruptions accompanied by an
eruption filament, which occurred on 29 December 1965 under relatively calm solar
conditions. Ionograms of the Sofia Ionospheric Station were analyzed on 'the
eruption day and 'three control days before and after the event in order to obtain
morphologic information and a first approximate determination of the radiation-
frequency range accompanying the phenomena. Examination of critical frequencies
Card I / 2

ACC NR:
AP7000702
of the middle and high i.onosphere confirmed that the electronic density
increases due to the superposed action of the six solar eruptions. Study o'0
I
values led to the assumption that filament appearance was accompanied by a distinct
ionization incre
ase in the E layer. Examination of critical frequencies in the F1
and F2 layers showed no particular changes. The authors believe that UV radiation
in the 2). (200-800 A) range either does not increase with a filament, of increases
only slightly. It was concluded that the main ionizing radiation which accompanied
superposition of two qaulitatively different solar phenomena on 29 December 1965
was concentrated in the X-ray range. The paper was presented, by Academician
L. Xrastanov on 23 June 1966. Orig. art. has: 3 figures. [DR]
SU13 CODE: 03, 04/
QTH REF: 002/
Card .99
SU13M DATIR: none/ORIG REP: 0021SOV REP: 003/

ACC N111 AT7005561
AZ;7H0?: Seraftmov, K~
ORG: none
SOURCE CODE: DU/250G/66/008/000j0O45/0U-Uj
TITLE: Absorption of radio waves in simple and parabolic ionospheric layers
SOURCE: Bulgarska. akade-miya na naukite. Geofizichniya institut. Izvestiyap v. 8,
1966, 45-63
TOPIC TAGS: ionospheric absorption, ionospheric propagation, ionospheric radio wave,
r;;-. ~-- - A4," / iuvo4rJ,,t;,
ABSTRACT: Appleton's expressions for radio-wave absorption in simple ionospheric
layers with arbitrary exponential dependence u(z) are corrected. Undeflecting
absorption of short waves in a plain layer is examined and a solution with incomplete
gamma functions for an actual case is found. Corrections for the exponentially-
varying (with height) recombination factor are also found. Nondeflecting absorption
of the short waves in the simple a'layer is examined for a constant and a variable
neutralization factor. A general analysis of radio-wave absorption in a parabolic
layer is made, and the case of short-wave absorption in a layer with parabolic dis-
tribution is considered in detail. Some general time-varying properties of nonde-
flecting absorption for all of the above cas'es are giveni Orig. art. has: 3 fi ures
and 74 formulas. Pi" V
SUB CODE: OV,121 SUBM DATE: llNov64/ OR-IG REF: 016/ OTH REF; 015/ SOV REF: 008
Card i/1 1mr! "nnP

ACC NRj AT7005562 SOURCE CODE: BU/2506/66/0081/000/0065/0081
AUMOR: Scrafimov, Kiril
ORG: none
TITLE: Regularities in development of the Fl layer
SOURCE: Bulgarska akademiya na naukite. Geofizichniya institut. izvestiya, v. 8,
1966, 65-81
TOPIC TAGS: ionosphere, ionospheric propagation, ionospheric inhomogeneity
ABSTBACT: Some theoretical views regarding the occurrence of bifurcation in the
F region are considered. It is shown that movements in the ionosphere exert an
influence on the form of the function fo Fl(t) by introducing second harmonics in
'the daily variation and thereby deforming the cosine law that relates foFl to the
zenith angle x. If the mechanism generating the movements is purely thermal in
nature, then 'the effects of the above can be neglected. Observations by a networX
of stations confirm the disappearance of the F1 layer in winter during periods of
high solar activity, and the appearance of the layer during periods of low solar
activity. The following properties are established: a) minim= duration of the
existence of the layer is not during periods of maximum solar activity 196)1
but during R It, 151-8. In other words, bifurcation in the F region is delayed with
respect to the sunspot maxima; bl for high solar activity the appearance and clis-
appearance of the F1 layer corresponds to th-c sunrises and sunsets as seen from the
Cord 1/2 UDC: none

ACC NR:- _I~T700556__
earth"S surface and noz iMm an altitude 170 km above the siirface; ci scl~ix
has a sruill effect on -the duration of existence of the F! layer during the stu-nmer.
AI'Lernoon values of foFl are greater than the valuer, before midday for equal values
of cos x; the quantity n is introduced to characterize the above. It is sho*,m that,
until now, there has been no theoretical model that gives a good explanation of the
causes for bifurcation in the F region. Orig. art. has: 6 figures, 21 formulas,
and 1 table.
SUB CODE: 20/ SUBM DATE: 3lMay65/ ORIG REF: 009/ OTH REF: 013/ SOV PXF: 010

Co-rd

G30RGIJEV,Krcto; SFJiAFIMO.V,Xoco
Contribntion to the treatment of cholacystopathies. SrPski arh.
calok. lek 87 no.11*1032-ID40 N '59.
1. Hirurska klin.'jm Medicinskog Fakulteta u bkoplju, Direktor:
prof. dr Bogosav llmgojaVic.
(GALLBIADDER dis. )

DRAGOJEVIC, Bogosav; PANOVSKI, Bojan; SERAFIMOV, Koco
Traumatic hemorrhagic cyst of the spleen. Srpski arh. celok. lak.
88 no.6:719-722 Je 160.
1. Hirurska k3,inika Medicinskog fakulteta Univerziteta u Skopju.
Direktor: prof. dr Bogosav Dragojevic.
(SPLM wds & inj) (CYSTS etiol)

SERAFIMOV K ERAJIG, D.
=711_;__~
Mucocele of the appendix (apropos of one of our cases) Acta chir.
iugosl. 8(9) no.2:142-147 161.
1. Hirurska klinika Madiallskog fakulteta u Skopju (Upravnik prof.
dr B. Dragojevic)
(APPENDIX diseases)

SER&FIMOVA, J.; ULDELKOVSKI J.;,.SE
~~MOV .., -K.
On a case of Cz-wealhler-Baumgarten disease. Acta chir. Iugosl.
0
8 no-3:24.6-252 161.
1. Interna klinika (Upravnik prof. dr D.Arsov) i Hiru--ska klinika
(Upravnik prof. dr B.Dragojevic) I-Ifedicinskog fakulteta u Skopju.
(LIVIER GIRWIC-SIS case reports)

SERAFIMCYV, K.; ANASTASOV, M.; NEDELKOVSKI, J.; SERAFIMOVA, E.
Contribution to the treatment of secondary echinococcosis of the
kidney. Acta chir. Iugosl. 8 no.4:371-377 161.
1. Hirurska klinika (Upravaik prof. dr D. Arsov) Medicinskog fakulteta
u Skopju.
(ECHINOCOCCOSIS surg) (KIDIW DISEASES surg)

(sTp NgaqdS) (v4jodej osvo 5ISODOODONDIDa)
(OTA9fo2-ajG *a ap
Lw.'e.ldfl) nCdOYS n InejTn3pj 20:JSUTOT H
joad -~7 MeN V7truTpj B'IfIMJT -1
'T91 6L-7L:T*Ou 6
-TSO-%T -z-,-jo --o- -ueaTds aq,% -o spoooooouTuoe S.~puooar. jo asto v
'V 'A29d ! *G 'DlfVUgZ f 'X 'AUNIMSS

SEPJiFI,MOV, Kocc; GEORGIJEEV, Krsto; SERAFIMOVA, Elisaveta
Carcinoma of the biliary tract. God.Zborn.Med,Fak.Skopje
no.10:79-83 163.
1. Univerzitetska hirurska klinika - Skop'je (Uprav-.nik Drof.
d-r B. Dragojevic) i Univerzitetska interna klird-ka - ~kopje
(upravnik prof. d-r D. Arsov).

SERAFIMOV, K.; GEORGIEV, K.; GALIG, B.
Case of giant ulcer of the stomach. Acta chir. Iugosl. 10
no.1:75-78 163.
1. Hirurska k]-inika Medicinskog fakulteta u Skopju (Upravnik
prof. dr B Dragojevic).
iSTOMACH ULCER) (PEPTIC ULCER PERFCE"tATION)
(GASTRECTOMY) (LIVER DISEASES) (PANCREAS)
(DISEASES)

DRAGOJEVIC, B,; ARSOV, D.; MILETIC, D,; GEORGIEV, K.; SERAFIMOV, K,;
DAVCEV, P.; LEVI, S.
Cancer of the stomach. 10-year clinical experience. Acts. chir.
Iugosl. 10 no.2:125-133 163.
1. Hirurska k]-inika (Upravnik prof. dr B. Dragojevic), Interna
klinika (Upravnik prof. dr D. Arsov)., Patoloski institut
(Upravnik prof. dr D. Miletic), Rendgen institut (Upravnik
doe. dr D. Tevcev) Medicinskog fakulteta u Skopiu.
(STOMACH NEOPLASMS) (NEOPLASM STATISTICS)
(GASTRECTOMY)

("FORGIFYI K.; SER/tIFTMOvi K.
Pseudomy)coma peritonei. Acta chir. Jugosl. 10 no. 3:256-261
163.
1. Ifirurska klinika Medicinskog fakulteta u Skopju; Upravnik:
prof. dr. B. Dragojevic. -

SFW..,,~T~,-.oir Y, -- dr.
--, - I-,- , , I ,
.; CySZ,4 tiS
t-cut,E, chole in ru-- clinical experience. God. zborn. med.
fak. Skopje 11:5-28 164.
I.. Clinique c~irurgicale de Iluniversite de Skopye (Yugoalavie)
(directeur: prof. B. Dragojevi-ch).

GEORGIJEV. Krsto; SERAFIMOV, Kcco; DAVCEV, Penco; GRUJEV, Vojislav
Stomach cancer -- 10 years cllil"Iical exrc---~-ence. God.Zborn.
Med.Fak.Skopje no.10:165-172 16'..
1. Univerzitetska Hirurska klinika (Upravnik prof. d-r
B. Dragojevic) i Univerzitetska Interna klinika (Upravnik
Prof. d-r D. Arsov), Skopje.

~dnc. KAR.A.Gjl OZ C"!
S iiaAFI MOVA , F. a 1%.
Use of trasylol in a-lute
38-4/0 Ja-F 16".
.L. Ifirurska. klirilka Medicinc-kog Calrultefa u Sk,,;pliz (Uprwradk3
prof. dr. 13. interna k1hn;ka
u S;wpiv. (Upra~.,-n.lk,_~ F-rof. d-r. D. k7~3v).

L 3269-66
ACCESSION HR: AP5025446 YU_J0015/64/OO0/0t6/0313/03t.5
AUTHORi Serafimov, K. (Doctor,-Docent),
TITIE: Possibilities of achieving hemostasis at the place of accident vith,
external bleeding
SOURCE: 14ecticinskiglasnik, no. 10, iq,64, %3_315
TOPIC TAGS: first aid, injury
ABSTRACT.- Systematic discussion of the various types of bandages, digital compres
'ion, fixation of extremity in extreme flexion, Esmarch tourniquet, packing the
wound, hemostasis by mans of hemostatic forceps left in place until- surgical care
can be given in good.facilities for this purposeo
ASSOCIATION: Hirurska kliniks Medicinskog fakultet&# SkoplJo (Surgical Clinici
Medical Faculty)
SUBM=Dt 00 ENCLt 00 SUB 00DEs 13
NR REF SOVt 000 MW t 000

L 4S49-66 FCC/EWA(h)
SOURCE -766H76757-0-1-87 002 01137
ACC NRs AY5028773 13u - OU6
AUTHOR: SArAfinny K.
ORG: Geophysical Institute zarian- Academyr of Saignees -(deophysikalisches -I
, Bul[
er Bulgarischen Akademie der Wissenschaften)
d
TITLE: Accuracy of Ionospheric data and the applicability of the discrete point,
methc~d to the study-of the E-layer
SOURCE: Bulgarska akademiya. na naiukite, v. 18,. no- 2, 1965.: 113~41~
TOPIC TAGS: E layer, ionospheric electron dens solar activity, ionospheric-olyiic
ABURACT: zaerman'art~i'e-181- To -o'6tai the nt ch3racteristic quantities;
n imports
of the ionospheric E-layer, one must carry out several measurements at
different time-points and then apply the method of discrete points
-The
author discusses the problem concerning the largest number of N-values which
be extracted from the courso of a sinmie day A
:May thout makine. their
mutual differencos smaller then the permissible total error* 'He invostigates,
the errors due to the instrumentationt- to the astim,ato~.and,*,inteioroiationo
of results # -and to the physical. inaccuracios relative ~tll .+.he Medium: under
consideration* The results4show that from the diurnal. tourale.'of Ahe oloctront-....
1enIsity in the E-layer one can extract during the winter wjtl~ low solar.
A
activity some 20-25 discrete pointsy while during the summer with high
activity, the number of pq~~ '40
_r4jy~ _reach .-45*1
-aid
_C
j

-L 15609-66 EMT(d)/EEC(k)-2/FCC/EWA(h) RB/WS-2
ACC NR: AP6008202 SOURCE CCDE.- BU/0011/65/018/604/0311/0314
AUTHCR: Serafimov, K.
CRG: Geophysics Institute, Bulgarian Academy of Sciences
TITTE: Absorption effects of the E-F intermediate region on the propagation of
ra-diowaves
SOURCE: Bulgarska akademiya na naukite. Dokladyj v. 18p no. 4.. 1965, 311-314
TOPIC TAGS: radio wave absorption, ionospheric electron density, radio wave
,propagation
ABSTRACT: General formulas for the determination of the nondeviative absorptio
n
within the E-F illtermediate regionk%ave been derived. The actual calculation of
the absorption requires the knowledg*e of the altitude alectron.density-distribu-
tionj, and the author carries out the calculations following a p Ireviously described
method for the electron density profile determination (Fure a. Appl. Geophys-1, 620
1965y no. 2). The article concludes with the discussion of a formula for.the
nandeviative absorption within the E2 and FO layers. The paper was presented by
Card-1/2

Mama
--:L 18083~-66---Fc
G/
FACC NR: AP6010174 SOURCE CODE: BU /65101 IM 5 71MM3 7
AUTHOR: Serafimov, K.
ORG: Institute of Geophysics, Bulgarian Academy of Sciences
TITLE: betermination of the vertical velocity of ionospheric electron transfer
SOURCE: Bulgarska akademiya na naukite. Dokladyp v. 18,, no. 8,, 1965j, 735-737
TOPIC TAGS: ionospheric physicsi atmospheric movement, ionizationt electron flow
ABSTRACT: cnosi~hsric =vements"exert a- isrVe if *not
~decisive influence on the ionization-nautralizntien bnlance and on 'Ehe
slting ionospheric structure N(z).,
-re The author discusses the various
:approaches to the determination of '%he vertical velocity of ionosnheric
electrons and findinir~ them insufficiently precize, devises a new theoretical
iformulati8n of the problem and discus;sos various, methods tar the nes-surement
;of the
_quentitia-s entering.. the newly-derived. expressions.- The final numerical
determinations should be made by graphical integratio'ns.*.'-'Th'is paper was presented
by Academician L. Krastanov on 3 April 1965. Orig. art, has.: 7 formulas. [JFRS11-
SUB CODE: 04, 20 SUEM-DATE.- -03kpr65 ORIGREF: 003 OTH REF: 007
SOV REF: 004
Z_~
L~and lA

ACC Nk, XP6026868 SOURCE CODE: BU/0011/65/018/012/11()7/1110
AUTHOR: SerafimQvx K.
ORG: GeophyaLcal Institute, BAN
TITLE: Daily course of the appearance of theE2 layer
SOURCE: BAN. Doklady, v. 18, no. 12, 1965,, 1107-1110
TOPIC TAGS: radio wave, radio wave scattering, E layer
ABSTRACT: The author showed in earlier papers (Compt. rend. Acad. bulg. SFi.,
16, 1963, 365) that the radiowave reflection from the E2 layer above Sofi^, Bulgaria,
exhibit a clearly pronounced daily course with a morning maximum. Using v~arious
experimental data the author discusses theoretically at length the possible reasons
for the observed regularity. Some of the explanations are closely tied to the
validity of the data by Jacchia and Slowey (Smithsonian Astrophys. Obs. Spec. Rep..,
1962, p. 100). This paper was presented by Acadenician L. Krastanov on 17 July
1965. Orig. art. has: 10 formulas. [JPRS: 36,4571
SUB CODE: 04, 09 / SUBM DATE: 17Jul65 / ORIG REF: 010 / SOV REF: OM
OTH REF: 006
Card 1/1 44d~

SERAFIMOII, K,V.
Inoaphri,,:--e, electrified casing of the ea:-tn, PrIr '.znanie
18 no.!-,1-5 Ja 165.

s/o65/6o/ooO/012/002/007
E030/E412
AUTHORS: Serafimov, L.A., Potapova, G.Ye. and L3vov, S,V.
TITLE: '--D-lr-e-ct--I-n-v-e-s-f-i-gation of the Phase-Equilibrium-of
Non-Ideal Multicomponent Systems by Distillation
PERIODICAL: Khimiya i tekhnologiya topliv i masel, 1960, No.12,
pp.10-14
TEXT- Ideas are put forward for separating multicomponent
mixtures by distillation, whether they are ideal or non-ideal,
or whether they form azeotropes or not, The separation of the
system M~K(MEK), 2-butyl alcohol, and water is carried and the
phase equilibrium determined by continuous distillations
The conventional determination of the complete phase-equilibrium
for multicomponent systems is shown to be unnecessary for
predicting the separation to be effected by distillation. In the-
present method, only those regions are investigated which are
relevant to the separation. The entire system can be regarded as
a series of independent binary mixtures, where the liquid phase is
always the liquid mixture. and Eor the vapour phase each of the
-vapour-s to be separated are considered in turn as the second phase
of the binary system. This procedure is clearly valid for ideal
Card 1/3

S/065/60/000/012/002/007
E03o/E412
Direct Investigation of the Phase-Equilibrium of Non-Ideal
Multicomponent Systems by Distillation
systems, and for non-ideal systems it is true to a degree of
accuracy dependent on the particular mixture and component to be
separated. In practice, even for non-ideal systems considerable
accuracy in predicting separation is achieved by studying the
phase-equilibrium by subjecting -the various concentrations of the
components to continuous distillation. The method has been shown
to work for three and twenty seven real plate distillation columns
for MEK, 2-butyl alcohol, and water. Analysis was by determination
of the MEK content by hydroxylamine and determination of the other
components by refractivity, the accuracy being 0.1 to 0.4% absolute.
X,X Diagrams were obtained, confirming that there is an azeotrope
at 59.4% z4EK, 40% water and 0.4% butyl alcohol. Below this, in
spite of stratification, there is no azeotrope and considerable
separation is possible. The presence of water steepens the
X,X curves for MEK in 2-butyl alcohol and confirms the
desirability of water as an extracting agent. There are 2 figures,
Card 2/3

LIVOV, S.V,; SERAFIMOV, L.A.; MZZHUKHINP A~~'.-
Comparative efficiency of different systems for disti.-Ulng the
binary mixtures of partialloy mixing components. Khim.i tekh.
topl.i masel 6 no.9:2&-32 S 161. (NIRA 14:10)
1. Institut tonkoy kbimicheskoy tekhnologii imeni M.V.Lomonosova.
- (Distillation) (Mxtures)

SERAFIMOV, L.A.; LIVOV, S.V.
Composition of multicomponent mixturres on a feed plate durinor rect-ifi-
cation. Khim. i tekh. topl. i masel 6 no.11:32-34 N 161;
- (MIRA 14:12)
1. Moskovskiy institut tonkoy khimicheskoy tekhnologii im. M.V.
Loiaonosova.
(Distillation)

5ERAFIVW, L. A., Cand. Tech. Sci. tdiss) "Directed Study of
Phase Equilibrium Liquid - Steam and Go.-Apuza-ilon of Rec'ui-fication
of Non-ideal MUltiDle-component 'Mixtures," Moscow, 1961, 12 pp.
(Moscow Inst. Chem. Machinebuilding) 200 copies (KL SuD 12-61,
~O
274).

SERAFIMOV, L.A.; KUSHNER, T.M.; LIVCV, S.V.
Liquid - vapor phase equilibrium In the system acetic acid-
propionic acid at atmospheric press-za-e. Zhur.fiz.khim. 36
no.8:1830-1832 Ag 162. (MM 15:8)
1. Moskovskiy institut tonkoy khimicheskoy tekhnologii.
(Acetic acid) (Propionic acid) (Phase rule and equilibrium)

KRYUCHKOV, B.S,,; SERAFIMOV, L.A.; LIVOV, S.V.
Recovery of organic acids by the liquid extraction method.
Khim.i tekh.topl.i masel 7 no.7:20-24 Jl 162. (MIRA 15:9)
(Acids, Organic) (Gasoline)

MOZZRUKHIN, A.S.; SERAFIY4. L.A.; TIMOFEYEV, V.S.; TYURIKOV, I.D.
Apparatus and devices for laboratory rectification. Zav.lab. 29
no.4:503-505 163. (MMA 16:5)
1. Moskoyskiy institut, tonkoy khimichaskoy tekhnologii im.
M.V.Lomonosova.
(Distillation apparatus)

PAVLENKO, T.G.; ANDRIAMOV, K.A.; LIVOV, S.V.; KHANANASHVILI, L.M.;
SERAMDV,.-L-A.; KAMARITSKIY, B.A.
Hydrolysis of organochlorosilanes in continuous countercurrent
spray colwms. Izv. vys. ucheb. zav.; khim. i khim. tekh. 6
no.3:465-1+70 163. (MMA 16:8)
1. Moskovskiy institut, tonkoy khimicheskoy tekhnologii imeni
Lomonosova kafedra tekhnologii osnovnogo organicheskogo sinteza
elementoorganichekikh i neorganicheskikh polimerov.
(Silane) (Hydrolysis)

PAVLENKO, T.G.; FALIKCVSKIY, V.B.; SERAFIMOV, L.A.; LIVOV, S.V.
Conduction of chemisorption processes in countercurrent spray
columns operating contintiouslf (in the system liquid ---liquid).
Izv.vys.ucheb.zav.;khim. i khirii.tekh. 6 no.2:328.-332 '63.
WRA 16:9)
1. Moskovskiy institut tonkoy khimicheskoy tekhnologii imeni
Lomonosova,- kafedra tekhnologii osnovnogo organicheskogo sinteza.
(Extraction apparatus)

SERAFIMOV L.A.; YDZ2HJKHIN, A.S.; LIVOV, S.V.
Design of distillation columns for separating binary mixtures of
partially mixing components. Khim.i tekh.topl.i masel 8 no.8s
16-19 Ag 163. (~ffRA 16:9)
1. Institut tonkoy khimicheskoy tekhnologii im. M.V.Lomonosova.
(Distillation apparatus)

KRYUCHKOVP B.S.; SERAFMOV, L.A.; LIVOV, S.V.
Recovei-f of arganic acids by liquid extraction. Khim. i tekh.
topl. i masel 8 no.12:58-61 D 163. (MIRA 17:1)
1. ITKhT im. M.V. Lomonosova.

SEP-A-PIMOV, L.A.; POTAPOVAJ, G.Ye,
DeT~endence of the refractive index or, the cam-oos-it--on of
a mixture methy
,l ethyl ketone - butyl alcohol - water.
Zhu--. pr-ikl. khim. 36 no.11:2550-2551 N 163.
(MIRA 17: 1)

T rL;i pl.as,3 llci,-
7 ~, re . Klrl im. p, r orn

parameterr.:of tf~e f radtionat' distillition, columns ~c
investigated -were determined ......

KRYUCHKOV, B.S.; SERAFY.-OV, L..A.; S=-L_77"TS, I.P.; GOLY17M, Yt,,F.;
LIVOVJ, S.V.
Extraction of double-base acids by liquid extraction. Khjmm. i
tekh. topl. -L masel 9 ne.4:6-9 Ap 164. (MIRA 17:8)

PROKHOR(YVAI V.V., SERAFH.GV,, L.A.; TAKHTAMYSHEVA* L...S.
I
Liquid - vapor phase equilibrium in the sy;e%em &cry-lonitrile -
acetonitrile at atmospheric pressure. Zhur.%fiz. khim. 38
no.4:1005-1008 Ap '64. (MMA 17.6)
1. Institut tonkoy khimicheskoy tekhnologii.

GRUZDEV, Ye.A.; ANOSOVA, I.G.; SERAFIMGV, L.A.; LWOV, S.V.
Directed study of phase equilibrium curves for the t-3chnc.1--gical,
flow sheet of the rectification of catalyzates of the Oxo synthesis.
Khim. prom. 40 no.8:613-616 Ag 164. (MIRA 1814)

2,12, 1
s - L -n- e n c, o g ni
1c 0

SERA*Ff,',Tj'-v, L.A.; TIF.IOFH'?~V, !;".;C,,Vl S.T".
Liquid - vaLcr Phase eQ''dilibrilz.~.- lin the system isobur,T~ i :
anhydride - n-butvra--'.dehyde at atmoopheric pressi:re. Zh,,i-?-.
fiz. khim. 38 Jll 6",.
18:3)

SEP,AFD.!C)V, L, A. ; 14T.K..; LIVOV, 'S.V.
If.,juid -- vapor equilibrium in the acetone - v-ry-I acetate s-,szem at
- ~ I
atmospheric pressure. Ziur.f-Jz.kh---im- 38 no.8:2065-2067 A~- f6~,'.
(MIRA 119-,l)

L.A., FROFMOROVA) V.V.; 1',C)VOSELOV"'t,
SERAFI14OVY
crylonitrile
Liquid vapor phase equilibrium in trie SYS,6eul a
e. Zhur. fia. kchim. '-8 no.6:
Propionitrile at atmospheric pressur
(,,4IR-k 18:3)
IC62-1665 Ja 161'..
1. Institut tonkc~y ~-Iizrdches~OY tekhr'0109ii imeni Loronosova.

I-SIEPIAF 11,,D11, L. A.; T I V.S. ; i'D R ~;,z M I I, It. S'. ; POPCj'VV- , L.14. ;
C,-:77' -.7.' , '7 , - I D
1--l- - - - ~ - 1. r,, . .
Study and calculation of the rectification process of milticomponent
mixtures by the separated vapors of the co-mponents. Xhim. prom - 41
no.i:42-45 Ja 165. (1, R.A 18:3)

tpL-j%qD'j, 17", ru
TI SEE
Ap
F-A 8:8)
c h lana 5 KI -Ir- P k. II
an I -.,

T I lr()',l
vapor plbase e-iii-Alibrium in scme binaz7 miytures present
the products cf oxo synthesis from Propylens at atmospheric
pressure. Zhur. fiz. kh-Lm. ~9 no.8:18bO-1894 Ag 165.
(MIRA 18ig)
L. Voskovsk-iy instiltut tonkoy khiird.che5kay tekhnologli imeni
7oinonosova.
,u

SERAFIMOV, L.A.; TYURIKOV, I.D.; RUMYANTSEV, P.G.; LIVOV, S.V.
Liquid - vapor phase equilibrium in the system methyl borate -
methanol at atmospheric p-essure. Zhur. fiz. khim. 38 no.5:
1326-1331' My 164. (MIRA 18:12)
1. Moskovskiy institut tonkoy khimicheskoy tekhnologii
imeni Lomonasova. Submitted June 29, 1963.

Ylr,GSI-A-VIA / Pharnacalogy and Toxicology. 5-Hydroxytryptp-Trino. V-3
Abe Jour : Rof. Zhur - Biologiya, ITO 17, 1958, No. 80538
Author : Sorafiraov, N.
Inst : Not given
Titla : On tho Problem of Sorotonin
Orig Pub : Ynkod- nod. lzogl., 1957, 12, No 5-8, 8-12
Abstract : No abstract givon
Card 1/1
8

DOLGOVA, Vera; Nikola-, SESTAKOV, GlIgor
Thyroid 1-131 fixation and perchlorate Jun hyr-c-
thermia in dogs treated with propylthiox--a:!-t'-,. God,ZlbOrn-
Med.Fak.Skopje no.10-.140-142 163.
1. Institut za patofizicloo'-Ja medlcimqk~ - "kop-'-
0 j- J-
(Eirektor prof. d-r 1.3. Tadzer).

_SERAF-D-I-OV, F.
tein6nstrat4ng the Cross method '--y the method of fi-yed coi.nts. p. 18.
,AT -1 o. -1. Kar./Aor. 1947
Iz - "I..' , Vol. 1, N-
(
SO* I-Ionthly List of East European Accessions (EEAL) LC Vol. 6, No. 1-2, Dec. 19.57
Uncl.

S
"Introducinf , EP~' (7
~ subtrorical cultured nlants in ~ rj () F-~W
- - I rl - T7j-jjt7,
~7,71711F, Voll ~- I'T3, 11.!~:r. 1-~51, Bulgaria)
East European Vol 2 #2
SO'. Month List of RUNIKK Accessions./Library of Congress, -- August 1953, Uncl-

SERAFIMOV,S.; ARSOV,A.; NIKCWV,G.
Products obtained by sulfronation and condensation of the
derivatives of talloleic acids. Khim i industriia 35 no.3:
84-87163

SE
SERAFI1,11011, Serpfim, -inLh., st,prepodavatel
... ....
Ccior 11%s4.ness or" wool dyed with AS naphthcl by ~.,slirig preverti,;e
agents, Te~-stilna prom 13 no.5-20-26 164.
1. Inst-Itute of Industrial Chemistry, Sofia.

SERA-PIMOV, S.
"Standards in the Wool Textile Industry", P. 40, (RATS ION&LIZATS I IA, Vol. 3,
No. 10/11, Oct./Nov. 1953, Sofiya, Bulgaria)
SO: Monthly List of East European Accessions, (EVAL), LG, Vol. 3, No. 12,
Dec. 1954, Uncl.

BULG,'-RL',/C omic,-il Technology. Chemical Products H
and Their f,pplications. Dyc-ing and Cho-
t,
mical Treatment of Textile Fabrics.
Abs Jour Rcf Zhur-Miimiya) No 6, 1959) 21896
kuthor Sera-fimov, S.
Inst
T it lo se of ODtically Lctive Substances During
the Bleaching of Textile 1"aterians.
Orig Pub Laka promishlenost. Tekstilno izd., 19577
6, No 10, 20-24
Abstract A review of the construction of opticall
bleachers and conditions for thoir use
during treatment of cellulose and animal
and polyamide fibers is presented. -- 0.
Golosenka
Card
C ~11-

KUNCHEV, Evgenl, lnzh.; KCLEV, Stoian, inzh.; SERAFIMOV, Serafim, lnzh.
Characteristics of natural silk fabrics treated vith polyamides
and by interfacial polycondensation. Tekstilna prom 13 no.6:
15-18 164.
1. Institute of Industrial Chemistry, Sofia.

SERAFIIYOV 3,; KOLEV, Nv; ARSOV, A,, 7.4FAIRIAN, A.; IAVASIEV, St.
Textile auxiliary means prepared on *,he basis of tall oil.
Khim, i industriia 36 no., 2t51-54 16L~

sET~~,Fjm,OV, Serafim; F,,,geni; Siika
Gertain -,,roper7Jr--S and q1-mlitites of -E-ulgar-J"ar. 7~L u--',.'Ilr
1 0
blue dyestiiff~ Fjjim i Jndurtriia 36 no. 3:95-99 ", 4.

ENN, Stoiks, dots. -,nzh.; 7,R--TIYOV, Serafim, inzh., st. i~rep. -
Fifth Int-ernational Congress of Dyers, Tekstilna prom 14 no.l:
46-48 165.

KARANFILSKI, Borislav; D4VCEV, Penco; SERAFIMOV Stevan
Radiochromium labeled ery-tbrocyte tests in gastrointestinal hemm-
rbages. Srpski arh. celok. lek. 88 no.10:969-972 0 160,
1. Patofizioloski institut Medicinskog fakulteta Univerziteta u
Skopju. Direktor: prof. dr Isak Tacer. Interna klinika Y-edicinskog
fakulteta Univerziteta u Skopju. Direktor: prof. dr Dimitar Arsov.
(HEMORRHAGE GASTROINTESTINAL diag) (ERYTHROCYTES)
(CHROMIUM radioactive)

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Etiology of typ1joid pullorosis in chicken's, - 1 6 Ir", ~
zaraz parazit 7 61-67 163.