Vol 28 (1991): Suppl. 1. Jubilee Scientific Session on the Occasion of the 30. Anniversary if the Medical University of Varna

Cover and Contents	PDF

Case Reports

INTRACRANIAL COMPLICATIONS WITH RHINOGEN ETIOLOGY - A CASE REPORT	PDF
V. Banova	3-4

REGARDING MEDICAL TREATMENT OF MODERATE BRAIN CONTUSIONS IN CHILDREN	PDF
D. Cholakov	5-6

THORACOSCOPY - DIAGNOSTIC AND THERAPEUTIC OPPORTUNITIES IN SURGICAL CHEST DISEASES	PDF
R. Radev, Y. Kuzmanov, G. Slavov, R. Nenkov	7-8

ABOUT DIAGNOSTICS AND TREATMENT OF GASTRODUODENAL HEMORRHAGE	PDF
B. Belchev, I. Kozev, Sht. Donev, M. Balcheva	9-10

STRATEGY OF DIAGNOSIS, PROGNOSIS AND MANAGEMENT OF ACUTE DESTRUCTIVE PANCREATITIS	PDF
P. Chervenkov, S. Glinkov, R. MAdjov	11-12

LIVER INJURY	PDF
P. Chervenkov, S. Glinkov, R. Madjov	13-14

ASEPTIC NECROSES OF CARPAL BONES	PDF
D. Kamburov	15-16

USE OF EXTERNAL FIXATOR FOR LIGAMENTOTAXIS IN FRAGMENTED DISTAL RADIAL FRACTURES	PDF
D. Kamburov, R. Popstefanov, Z. Govedarov	17-18

HUESTON LOCAL FLAP IN PULP DEFECTS REPAIR OF THE HAND. A REVIEW OF 16 CASES	PDF
D. Boshnakov	19-20

OUR EXPERIENCE IN HEALING COMPOUND FRACTURES OF THE LEG	PDF
S. Ganchev	21-22

`ACUTE SCROTUM`: UNSOLVED DIAGNOSTIC AND THERAPEUTIC PROBLEMS	PDF
L. Ralichkova, D. Gochev, A. Hinev, V. Ajladunov	23-24

SURGICAL TREATMENT OF SUPPURATIVE INFLAMMATION OF OVARIES	PDF
D. Arnaudov, R. Yaneva, V. Markova	25-26

CESAREAN SECTION WITH PREMATURE FETUS IN BREECH PRESENTATION	PDF
Tz. Tzvetkov, A. Popova, F. Protopopov, M. Pencheva	27-28

MANAGEMENT OF LABOUR WITH CEREBRAL PATHOLOGY	PDF
S. Skochev, S. Kavardzhikova, P. Shopova	29-30

AN URGENT TRACHEOTOMIA	PDF
B. Banova, S. Hristov, I. Stojnova, D. Gabrovski, R. Mutafova, D. Marev, M. Nenkova, I. Chobanov, P. Nedev	31-32

INORGANIC FOREIGN BODIES IN THE RESPIRATORY TRACT	PDF
D. Marev	33-34

DIAGNOCTIC ALGORITHM FOR BRONCHIAL ASTHMA	PDF
S. Projkov, M. Peneva, Z. Zlatanov, D. Kalev	35-36

SOME PROBLEMS OF THE TIMELY DIAGNOSIS, TREATMENT AND REHABILITATION OF PATIENTS WITH ALLERGIC BRONCHO-OBSTRUCTIVE DISEASES	PDF
Z. Odzhakova, A. Tsonev, R. Shishkov, T. Todorov	37-38

BRONCHOALVEOLAR LAVAGE IN THE DIAGNOSIS AND DIFFERENTIAL DIAGNOSIS OF LUNG DISEASES	PDF
H. Ganchev, M. Kokoshyan, D. Kalev	39-40

MODERN METHODS AND POSSIBILITIES FOR DYNAMIC DIAGNOSTICS OF PULMONARY DISEASES	PDF
M. Peneva, S. Projkov, A. Tsonev	41-42

SERUM ZINC IN BRONCHOOBSTRUCTIVE SYNDROME IN CHILDREN	PDF
D. Petrov, P. Chankova	43-44

EPIDEMIOLOGICAL ANALYSIS OF VIRAL PNEUMONIAE IN 1986-1990	PDF
V. Lyutzkanova, K. Tuncheva	45-46

MORPHOLOGICAL CHARACTERISTICS OF BARRETT'S OESOPHAGUS	PDF
B. Manevska	47-48

TREATMENT OF PEPTIC ULCER DISEASE PATIENTS WITH THE APPARATUS "ELEKTRONIKA-EHF"	PDF
M. Stamboliyska, M. Atanasova	49-50

DOES CHRONIC ALCOHOLISM CAUSE CHRONIC GASTRITIS?	PDF
I. Danev, B. Manevska	51-52

CHANGES IN THE ACTIVITY OF SOME SERUM ENZYMES IN CHRONI CLIVER DISEASES	PDF
I. Shalev, A. Atanasova, D. Gancheva, V. Zhechev, D. Kamburova	53-54

CHANGES IN THE ACTIVITY OF SOME SERUM ENZYMES IN PATIENTS WITH EXTRAHEPATIC CHOLESTASIS	PDF
V. Mihova, D. Gancheva, G. Varbanov	55-56

STRUCTURE AND CLINICO-LABORATORY CHARACTERISTICS OF THYROMEGALIES IN CHILDHOOD	PDF
V. Tsaneva	57-58

ULTRASOUND AND COMPUTED TOMOGRAPHY IN LIVER HEMANGIOMAS	PDF
V. Glinkova, K. Stoyanov	59-60

ON SOME ASPECTS IN ULTRASONOGRAPHY OF THE UPPER ABDOMEN	PDF
T. Traev, D. Dobrev, K. Ivanov, B. Kornovski	61-62

ULTRASTRUCTURAL CHARACTERISTICS OF INSULINRECEPTOR BINDING IN NON-OBESE TYPE 2 DIABETICS WITH NORMAL INSULIN BLOOD LEVEL	PDF
H. Bohchelyan	63-64

ULTRASOUND EVALUATION OF DIFFUSE THYROID DISEASES	PDF
K. Hristozov, L. Koeva	65-66

CORONARY STATUS, PHYSICAL CAPACITY, LEFT VENTRICULAR FUNCTION AND PROGNOSIS IN MEDICALLY STABILIZED PATIENTS WITH UNSTABLE ANGINA	PDF
N. Penkov, V. Sirakova	67-68

LEFT VENTRICULAR HYPERTROPHY, LEFT VENTRICULAR FUNCTION AND BETABLOCKERS IN PATIENTS WITH ESSENTIAL HYPERTENSION	PDF
V. Sirakova, N. Penkov	69-70

OPERATED VERSUS NON-OPERATED PATIENTS WITH ACQUIRED VALVULAR HEART DISEASE: A FOLLOW-UP STUDY IN THREE YEAR PERIOD	PDF
V. Kadinov, R. Topalova, S. Nikova, V. Popov	71-72

EXPERIMENTAL STUDIES OF THE INFLUENCE OF HIGH DOSES OF VITAMINS A AND Е ON THE 5'NUCLEOTIDASE AND ADENYLPYROPHATASE ACTIVITY AND ON THE QUANTITY OF THE THIOL GROUPS IN THE HEART MUSCLE OF WHITE RATS	PDF
N. Ivanov	73-74

MORPHOLOGICAL DIAGNOSTICS OF INTRAVASCULAR COAGULATION	PDF
A. Angelov	75-76

HISTOLOGICAL CHANGES IN BRAIN ARTERIES IN ARTERIAL HYPERTENSION AND ATHEROSCLEROSIS	PDF
P. Genev, M. Gardevski	77-78

INTERMEDIATE FILAMENTS IN THE VASCULAR WALL: IMMUNOCYTOCHEMICAL STUDY	PDF
M. Trosheva, K. Dikranyan	79-80

ELECTRON MICROSCOPIC STUDY OF THE AORTIC INTIMA OF DIABETIC RATS	PDF
S. Zahariev	81-82

COMPARATIVE STUDY OF THE INFLUENCE OF UREA ON NORADRENALINE CONTRACTION IN ENDOTHELIUM-DENUDED AND ENDOTHELIUM-CONTAINING RINGS OF RAT AORTA	PDF
N. Temnyalov	83-84

ULTRASTRUCTURAL PHENOMENA OF THE FUNCTIONAL PECULIARITIES OF THE HEMOCAPILLARY ENDOTHELIUM IN THE LYMPHATIC NODES	PDF
S. Bakardzhieva	85-86

ULTRASTRUCTURAL FEATURES OF RAT UTERINE BLOOD-TISSUE BARRIER DURING DIFFERENT FUNCTIONAL STATES	PDF
V. Goranova	87-88

LOCALIZATION OF ENDOTHELIN-1 IN GUT TISSUE: IMMUNOCYTOCHEMICAL STUDY	PDF
K. Dikranyan	91-92

DEVELOPMENT AND RESULTS OF MEDICATIONS OF THE BURNS	PDF
K. Troshev, K. Leskovski, I. Zayakova, A. Stanev	93-94

STRUCTURE OF THE HOSPITAL MORTALITY FROM ACUTE MYOCARDIAL INFARCTION	PDF
A. Penev, N. Penkov, V. Sirakova, Z. Zlateva	95-96

TREATMENT WITH APHERESIS	PDF
D. Nenov, K. Nenov, D. Paskalev	97-98

MODERN STATISTIC METHODS FOR RATING OF HEALTH CONDUCT	PDF
E. Mutafova, I. Savchev	99-100

URGENT DIAGNOSIS IN PRACTICAL GENETIC COUNSELLING	PDF
L. Vasileva, D. Konstantinova	101-102

DIAGNOSTIC VALUE OF HYDRONEPHROSIS ULTRASOUND EVALUATION	PDF
H. Sapundzhiev	103-104

DIAGNOSTIC AND TREATMENT TACTICS IN MECHANIC JAUNDICE	PDF
B. Belchev, G. Chobanov, Sht. Donev, M. Balcheva	105-106

LABORATORY DIAGNOSIS OF CHRONIC GENITOURINARY TRICHOMONIASIS	PDF
N. Popova	107-108

ON SOME DEPENDENCES OF VIRUS ADSORPTION FROM STRUCTURAL CHARACTERISTICS OF ADSORBENTS	PDF
V. Lesichkov, N. Enchev	109-110

KALLIKREIN-KININ SYSTEM (KKS) AND ANGIOTENSIN CONVERTING ENZYME ACTIVITY (ACE) IN PATIENTS ON PERIODIC HA•MODIALYSIS (PHD) TREATED WITH RECOMBINANT HUMAN ERYTHROPOIETIN (rhEPO)	PDF
V. Todorova, P. Chankova, T. Yankova, D. Paskalev, D. Nenov	111-112

SCREENING OF THE THYROID PATHOLOGY IN THE POPULATION OVER 60 YEARS	PDF
V. Nikolova, L. Koeva, K. Hristozov	113-114

INFLUENCE OF IMMUNOREACTIVITY TYPE UPON POSTOPERATIVE STATUS OF PATIENTS WITH COLO-RECTAL CANCER (CRC)	PDF
K. Metodiev, M. Bozhkov, T. Temelkov, G. Kaprelyan, B. Kornovski	115-116

CHARACTERISTICS OF DIVERSIONS OF IMMUNOLOGIC INDEXES IN LUNG CANCER PATIENTS UNDERGOING COMPLEX TREATMENT	PDF
K. Nenova, V. Taskova, M. Kozhuharova, G. Velikova, I. Ivanov	117-118

PROGNOSTIC FACTORS IN PATIENTS WITH LUNG CANCER	PDF
D. Dimov, I. Mircheva	119-120

PROGNOSTIC FACTORS IN PATIENTS WITH METASTATIC BREAST CANCER ON СHEMOHORMONOTHERAPY	PDF
G. Velikova, V. Taskova, I. Mircheva, M. Kozhuharova, G. Dyulgerov	121-122

DIAGNOSTIC AND THERAPEUTIC DILEMMAS IN MALIGNANT LYMPHOMAS	PDF
R. Mishkova, K. Kudeva, H. Varbanov, R. Rachev, A. Zahariev, B. Manevska, K. Stoyanov, A. Belcheva, D. Popova, I. Boncheva, N. Nechaeva	123-124

PROTEINURIA AND HAEMATURIA IN PATIENTS WITH LUNG CANCER	PDF
M. Delijski, V. Madzhova, S. Boyadzhieva, D. Dimitrova-Kadinova, M. Kozhuharova	125-126

THE SPREADING AND DIAGNOSIS OF CANCER OF LARYNX IN THE DOBRICH TOWN AND THE REGION	PDF
J. Stajchev, I. Dimitrov, R. Stoyanova	127-128

PROFESSIONAL PATHOLOGY IN THE REGION OF VARNA - DYNAMICS, PROBLEMS, HORIZONS OF DEVELOPMENT	PDF
L. Dimitrova-Toneva	129-130

NEUROTOXICAL INJURIES OF WORKERS IN PROFESSIONAL CONTACT WITH HEAVY METALS	PDF
V. Nestorova, L. Dimitrova-Toneva	131-132

BIOLOGICAL PROPHYLAXIS OF OCCUPATIONAL EXPOSURE TO LEAD	PDF
p Nikolova, B. Kavaldzhieva, P. Chankova, T. Yankova	133-134

MORPHOLOGICAL ALTERATIONS IN SPLEEN AND LYMPH NODES OF EXPERIMENTAL RATS TREATED WITH AICI3	PDF
E. Softova, S. Boyadzhieva, P. Nikolova, B. Kavaldzhieva	135-136

PROPHYLAXIS OF SEPTIC INFECTION AFTER CAESAREAN SECTION: 11-YEAR EXPERIENCE OF VARNA OBSTETRICAL CLINICS	PDF
I. Kozovski	137-138

VARICOCELE AND FERTILITY - DIAGNOSTIC, CLINICAL AND PROGNOSTIC PROBLEMS	PDF
Z. Nanov	139-140

ALCOHOL INFLUENCE ON MALE FERTILITY-CLINICAL AND STATISTICAL EXAMINATION	PDF
B. Nanova	141-142

ROLE OF TEST ABRASION IN THE DIAGNOSTICS AND TREATMENT OF FEMALE INFERTILITY	PDF
V. Markova, R. Yaneva, D. Arnaudov	143-144

HORMONAL REPLACEMENT THERAPY AFTER SURGICAL MENOPAUSE	PDF
M. Yakov	145-146

MODERN DIAGNOSIS AND TREATMENT OF SUPERFICIAL BLADDER TUMORS	PDF
A. Hinev, D. Gochev, V. Ajladunov, L. Ralichkova	147-148

EXAMINATION OF UREAPLASMA UREALYTICUM DISTRIBUTION IN DIFFERENT ECOSYSTEMS OF PATIENTS AND HEALTHY HUMANS	PDF
H. Dimitrova, G. Kaprelyan, Z. Penev, M. Gardevski	149-150

STUDIES ON CYTOMEGALOVIRAL (CMV) INFECTIONS IN NEWBORN CHILDREN	PDF
L. Ivanova, P. Vasileva, R. Nikolova, S. Antonova, M. Dimova	151-152

MYELOGRAM - DIAGNOSTICAL AND PROGNOSTICAL SIGNIFICANCE IN CHILDREN WITH MALIGNANT TUMOURS	PDF
S. Kertikova	153-154

CHANGES OF MICROVASCULAR LINEAR DENSITY IN PATIENTS WITH CHRONIC IRON-DEFICIENT ANEMIA	PDF
Zh. Georgieva	155-156

THE INFLUENCE OF PYRACETAM ON THROMBOCYTOPOIESIS IN RATS	PDF
T. Ganchev, E. Dyankov	157-158

SOME THROMBOCYTIC AND ERYTHROCYTIC PARAMETERS AFTER BURNING (EXPERIMENTAL INVESTIGATIONS)	PDF
K. Mirchev, I. Kozarev, B. Belchev	159-160

MELATONIN ACTIVATES THROMBOCYTOPOIESIS IN RATS	PDF
N. Negrev, Yu. Nyagolov, Z. Dimitrov	161-162

CHLAMYDIA TRACHOMATIS IN PREGNANT WOMEN AND THEIR NEWBORN BABIES	PDF
V. Yonkova, M. Yakov, P. Shopova, S. Skochev	163-164

COMPLEX ANALYSIS OF BIOLOGIC PROPERTIES OF INFLUENZA VIRUSES ISOLATED IN VARNA DISTRICT	PDF
G. Kaprelyan, V. Rusev, M. Chividzhyan	165-166

CLINICO-MICROBIOLOGICAL DIAGNOSIS OF REACTIVE ARTHRITIS	PDF
K. Bozhkova, V. Yonkova, T. Shivacheva, G. Dimitrov	167-168

LYME DISEASE. CLINICAL AND EPIDEMIOLOGICAL STUDY FOR THE PERIOD 1989-1991 IN VARNA REGION	PDF
D. Nikolova, T. Gancheva	169-170

CONCERNING THE ANOMALIES OF THE INTRAUTERINE DEVELOPMENT	PDF
S. Kutsarova	171-172

RELATIVE PART OF INBORN DISEASES AS A CAUSE OF DEATH AMONG CHILDREN UP TO ONE YEAR OLD	PDF
I. Krasnaliev, M. Gardevski	173-174

INFORMATIVE POSSIBILITIES OF SCANNING ELECTRON MICROSCOPY TO DETERMINE PREMORTAL CHARACTER AND DURATION OF SKIN WOUNDS	PDF
I. Lazarov	175-176

IN VITRO ACTIVITY OF 35 ANTIBACTERIAL DRUGS TOWARDS 1400 STRAINS OF GRAM-NEGATIVE AND GRAM-POSITIVE BACTERIA	PDF
R. Marinova	177-178

EFFECT OF THE CALCIUM CHANNEL BLOCKERS CINNARIZINE AND FLUNARIZINE ON GUT PASSAGE IN RATS	PDF
A. Belcheva, K. Marazova, V. Lozeva	179-180

RATIONAL BASE OF A COMBINATION GENTAMICIN 0.1 % - UREA 0.2 % IN OINTMENT FORM DURING THE TREATMENT OF PATIENTS WITH SKIN BURNS	PDF
D. Zhelyazkov, N. Temnyalov, K. Troshev, R. Marinova, A. Zlateva, N. Vulova, G. Rashkova, I. Plachkov	181-182

RELATION BETWEEN THE REACTION TIME AND THE AMPLITUDE CHANGES OF THE H-REFLEX IN CASE OF SUCCESSIVE PLANTAR FLEXION OF THE FEET PERFORMED UNDER DIFFERENT EXPERIMENTAL CONDITIONS	PDF
Tz. Tzvetkov, R. Radev, S. Tzekov	183-184

INFLUENCE OF SOME EXPERIMENTAL PARAMETERS ON THE RELATION BETWEEN THE REACTION TIME AND THE AMPLITUDE CHANGES OF THE H-REFLEX	PDF
R. Radev, Tz. Tzekov	185-186

NEUROLOGICAL PROBLEMS IN CHILDREN WITH BRAIN DAMAGE SYNDROME	PDF
R. Ralcheva, V. Stoyanov	187-188

DYNAMICS OF PSYCHOLOGICAL STATE OF PATIENTS WITH MYOCARDIAL INFARCTION DURING POSTCLINICAL REHABILITATION	PDF
Zh. Zheleva, I. Boncheva, T. Todorov, V. Projkova	189-190

POSSIBILITIES FOR APPRECIATION OF MANUAL THERAPY IN CASES OF CERVICAL BLOCKS USING ELECTRODERMATOMETRY	PDF
T. Todorov, Z. Holevich, Zh. Zheleva	191-192

APPEARANCE AND DEVELOPMENT OF THE SYNDROME OF PSYCHIC AUTOMATISM IN SCHIZOPHRENIA	PDF
S. Todorov	193-194

CHANGES IN WHITE BLOOD CELLS COUNT (WBCC) DURING LABOUR - WITH AND WITHOUT ANALGESIA - A COMPARISON	PDF
T. Stancheva, E. Rajnova, D. Skocheva	195-196

EVALUATION OF ANESTHESIA-SURGERY STRESS IN CESAREAN SECTION BY EXAMINATION OF THE CATECHOLAMINES IN URINE	PDF
E. Rajnova, T. Stanceva, R. Dizhizhisheva, P. Shopova	197-198

IMMUNOMODULATORS IN PULMOLOGIGAL PRACTICE	PDF
D. Petkova, Z. Odzhakova, Y. Radkov, T. Mavrodinova, A. Karaivanova	199-200

MICROTUBULES IN RAT LEYDIG CELLS. A MODIFICATION OF SMOOTH ENDOPLASMIC RETICULUM?	PDF
M. Andonov, A. Didie, J. Mulenga	201-202

ERYTHEMA FIXUM - ATTEMPT TO EVALUATE THE IMMUNE CHARACTER OF THE DISEASE (WITH ONE CASE CONTRIBUTION)	PDF
G. Karayshev, S. Racheva	203-204

EARLY AUDITORY AND VISION EVOKED POTENTIALS AN INDICATOR OF A COMPLICATED PARKINSON'S SYNDROME	PDF
D. Minchev, L. Havezova, E. Radusheva	205-206

INTERNATIONALIZATION OF SCIENTIFIC COMMUNICATIONS IN THE FIELD OF REPRODUCTIVE ONCOLOGY	PDF
D. Tomov	207-208

EFFECT OF FLUNARIZINE ON CONTRACTILE ACTIVITY OF ANTRUM AND FUNDUS OF GUINEA PIG STOMACH	PDF
K. Marazova, K. Boev, R. Atanasova	209-210

NORMATIVE GROUPS FOR ANTHROPOMETRIC EVALUATION OF NEWBORNS	PDF
S. Popova, N. Feschieva	211-212

CLINICAL LABORATORY AND MORPHOMETRY STUDY IN PRIMARY LIVER CANCER	PDF
I. Marinova, P. Ilieva, Z. Harizanova, P. Mushatova, M. Killiovska	213-214

CLINICAL EXAMINATION OF TROPICAMID OPHTHALMIC DROPS-POLAND	PDF
H. Grupcheva, I. Grupchev	215-216

EPIDEMIOLOGICAL, CLINICAL AND LABORATORY PECULIARITIES OF AN EPIDEMIC OF ACUTE VIRAL HEPATITIS DURING 1990-1991 IN THE REGION OF VARNA	PDF
P. Manolov, M. Nenova, D. Radkova, R. Konstantinov, R. Vasileva, M. Radkov, M. Gospodinova, D. Skocheva, Tz. Dimov	217-218

PEECH DISTURBANCIES IN HEMORRHAGIC STROKE OF THE DOMINANT HEMISPHERE	PDF
P. Jordanova, L. Havezova	219-220

LONG-TERM PROGNOSIS IN CORONARY ARTERY DISEASE PATIENTS WITH HIGH PHYSICAL CAPACITY	PDF
M. Mitkova, D. Karastatev	221-222

THE CYTOPHOTOMETRIC ANALYSIS AS AN AID OF CLASSIFICATION OF ALL IN CHILDHOOD	PDF
I. Galabov	223-224

INFORMATION VALUE OF PARAMETERS FOR HEART RHYTHM ANALYSIS UNDER CONDITIONS OF ANEMIC HYPOXIA	PDF
V. Mileva, M. Georgieva, Zh. Georgieva	225-226

SOME PECULIARITIES OF VALVULAR STRUCTURE IN VARICOSE VEINS	PDF
M. Minkov, G. Marinov	227-228

INTERCELLULAR CONTACTS BETWEEN SMOOTH MUSCLE CELLS IN THE NEOINTIMA OF THE AUTOGENOUS REVERSED SAPHENOUS VEIN GRAFTS	PDF
D. Hristova, G. Marinov	229-230

EFFECTS OF COLCHICINE ON ERYTHROPOIESIS AND ON SOME PROPERTIES OF THE ERYTHROCYTES IN RATS	PDF
T. Ganchev	231-232

IDIOPATHIC MYOCARDIOPATHY AS A CAUSE OF DEATH IN FORENSIC MEDICINE	PDF
D. Radojnova	233-234

ALTERNATIVE METHOD FOR EPITHELIZING EROSIONS ON THE ORAL MUCOSA IN DIFFERENT DISEASES	PDF
Sh. Tomov, G. Karajashev	235-236

CLINICAL AND EXPERIMENTAL-PSYCHOLOGICAL STUDY OF PATIENTS WITH PARANOID SCHIZOPHRENIA WITH THE SYNDROME OF PSYCHIC AUTOMATISM	PDF
S. Todorov, V. Masheva, G. Momova	237-238

USE OF CALCIUM ANTAGONISTS IN PSYCHIATRY	PDF
M. Arnaudova	239-240

MULTIPLE ENDOCRINE ADENOMATOSIS (MEA) - CASE REPORTS	PDF
R. Alahverdyan, M. Vasileva, I. Markov	241-242