by BOGOMOLOVA ALEKSANDRA K, IVANOV BORIS K
Year of Publication 09.02.1995

by LYCHEV VLADIMIR A,SU, IVANOV BORIS K,SU
Year of Publication 15.06.1989

by SHEBOLAEV ALEKSANDR N,SU, IVANOV BORIS K,SU
Year of Publication 07.07.1988

by DRAGANOV,NIKOLA D, ATANASOV,RUMEN A, TODOROV,TODOR Z, IVANOV,BORIS K
Year of Publication 15.07.1986

by DRAGANOV,NIKOLAJJ D, ATANASOV,RUMEN A, TODOROV,TODOR Z, IVANOV,BORIS K
Year of Publication 14.09.1984

by DRAGANOV,NIKOLAJJ D, ATANASOV,RUMEN A, TODOROV,TODOR Z, IVANOV,BORIS K
Year of Publication 15.04.1984

by PANYUKOV ALEKSEJ A,SU, PANYUKOVA GALINA A,SU, IVANOV BORIS K,SU
Year of Publication 15.08.1988

by SHEBOLAEV ALEKSANDR N,SU, KELIN GEORGIJ E,SU, IVANOV BORIS K,SU
Year of Publication 23.09.1987

by TAKOV,IVAN M, NANKOV,DIMITR B, KLOCHKOVA,KRISTINA S, IVANOV,BORIS K, ZAKHARIEV,VLADIMIR A, NIKOLOV,ASEN G
Year of Publication 15.03.1985

by ZOLOTILIN ALEXNADR S.,SU, SEBOLAJEV ALEXANDR N.,SU, CEBYKIN VASILIJ A.,SU, IVANOV BORIS K.,SU, MEFODEV SERGEJ P.,SU, SOLDATOV GERMAN E.,SU
Year of Publication 13.06.1990

by TAKOV,IVAN M, MALINOV,STOJJNE T, IVANOV,BORIS K
Year of Publication 15.10.1982

by TAKOV,IVAN M, MALINOV,STOJJNE T, IVANOV,BORIS K
Year of Publication 15.07.1982

by TAKOV,IVAN M, MALINOV,STOJJNE T, TEKEV, SBIN G, IVANOV,BORIS K, NIKOLOV,ASEN G, ZAKHARIEV,VLADIMIR A
Year of Publication 15.02.1982

by MALINOV,STOJJNE T, IVANOV,BORIS K, ZAKHARIEV,VLADIMIR A, DRAGANOV,NIKOLAJJ D.,BG TAKOV,IVAN M
Year of Publication 15.06.1981

by TAKOV,IVAN M, NANKOV,DIMITR B, MALINOV,STOJJNE T, TEKEV,SBIN G, DOJJCHINOV,GEORGI D, SERAFIMOV,TODOR B, IVANOV,BORIS K, PARASHIKOV,PETR KH
Year of Publication 15.07.1983

by POPOV,NIKOLA G, STOJANOV,DIMITR JJ, BARZOV,PETKO I, IVANOV,BORIS KH
Year of Publication 15.11.1984

by NEDELCHEV,ORLIN I.,BG, KOSTOVSKI,SPAS V.,BG, IVANOV,BORIS KH.,BG
Year of Publication 15.03.1988

by NEDELCHEV,ORLIN I.,BG, IVANOV,BORIS KH.,BG, BARZOV,PETKO I.,BG, STOJANOV,DIMIT'R JJ.,BG
Year of Publication 15.12.1988

by NEDELCHEV,ORLIN I.,BG, IVANOV,BORIS KH.,BG, BARZOV,PETKO I.,BG, VLASEV,PANAJJOT A.,BG, STOJANOV,DIMIT'R JJ.,BG
Year of Publication 15.12.1988