by MALINOVSKI,JJORDAN P, SPASOVA,ERINCHE M, DANEV,GENCHO V, ORLINOV,VIKTOR I, SHPANGENBERG,BERND
Year of Publication 15.08.1986

by MALINOVSKI,JJORDAN P, SPASOVA,ERINCHE M, DANEV,GENCHO V, ORLINOV,VIKTOR I, SHPANGENBERG,BERND
Year of Publication 15.10.1984

by ORLINOV, VIKTOR I, POPOVA, KATJA S, SPASOVA, ERINCHE M, SHPANGENBERG, BERND, KARTAR, GEORGE, HOUBS, MIKE, KATARDZHIEV, ILIJA V
Year of Publication 15.08.1991

by GORANCHEV, BOZHIDAR G, NEJKOVA, TSVETANKA S, ORLINOV, VIKTOR I, MARCHEV, RUMEN B, KURTEV, JORDAN S, BOZHILOV, KHRABAR P, LOZANSKI, BOJKO P
Year of Publication 16.08.1993

by PETROV, IVAN G, IVANOV, IVAN P, ORLINOV, VIKTOR I, CHALGADZHIJAN, ARSENI KH, ZHELEV, ZHIVKO G, KURTEV, JORDAN S, ZHELEVA, VESLAVA JU
Year of Publication 15.09.1989

by PETROV,IVAN G, KURTEV,JJORDAN S, GORANCHEV,BOZHIDAR G, ORLINOV,VIKTOR I, CANEV,PENCHO D, BOZHILOV,KHRABR P, TASHKOV,TASHKO I
Year of Publication 14.08.1987

by SPASOVA,ERINCHE M.,BG, NEDJALKOV,MOMCHIL KH.,BG, DANEV,GENCHO V.,BG, SHPANGENBERG,BERND,DD, ORLINOV,VIKTOR I.,BG, POPOVA,KATJA S.,BG
Year of Publication 14.04.1989

by BOZHILOV,KHRAB'R P.,BG, GORANCHEV,BOZHIDAR G.,BG, PETROV,IVAN G.,BG, ZHELEV,ZHIVKO G.,BG, ORLINOV,VIKTOR I.,BG, KR'STEVA,CVETANKA S.,BG
Year of Publication 14.04.1989

by SAROV,GENCHO A, GORNACHEV,BOZHIDAR G, ORLINOV,VIKTOR I
Year of Publication 15.09.1980

by GORANCHEV,BOZHIDAR G, ORLINOV,VIKTOR I, ZHELEV,ZHIVKO G, SHPANGENBERG,BERND
Year of Publication 14.05.1982

by SPANGENBERG,BERND, GORANCHEV,BOZHIDAR G, ORLINOV,VIKTOR I, DARAKCHIEV,IVAN S
Year of Publication 14.05.1982

by DIMITROVA,ELENA KH, GORANCHEV,BOZHIDAR G, ORLINOV,VIKTOR I, SHPANGENBERG,BERND
Year of Publication 15.04.1982