by GEORGIEV, PENCHO G, PETKOV, LAZAR I, MIKHNEV, MIKHNJU J, TODOROV, SVETLIN T, KOFINOV, PETAO N
Year of Publication 31.01.2002

by GEORGIEV, PENCHO G, PETKOV, LAZAR I, TODOROV, SVETLIN T, MIKHNEV, MIKHNAO J, KOFINOV, PETAO N
Year of Publication 29.12.2000

by LAMBOV,SASHKO I, BIZHEVA,LIDIJA T, PETKOV,LAZAR I, GANCHEVA,TAMARA S
Year of Publication 15.10.1984

by KOMITOV,PETR G, SJAROVA,ANTOANETA D, KIRCHEVA,RADKA S, GROZEVA,ELENA I, PETKOV,LAZAR I
Year of Publication 15.04.1984

by NIKOLOV,KIRIL V, KIRCHEVA,RADKA S, MARKOVA,TANJA N, PETKOV,LAZAR I, GRZEVA,ELENA I
Year of Publication 15.03.1984

by FILIZOVA,LJUDMILA D, KIROV,GEORGI N, KIRCHEVA,RADKA S, CHOPARINOV,CHAVDAR G, GROZEVA,ELENA I, PETKOV,LAZAR I
Year of Publication 16.07.1985

by MIKHAJJLOV,DIMO G, KIRCHEVA,RADKA S, GRIGOROV,GRIGOR R, ATANASOV,KRASIMIR M, DENEVA,TEMENUZHKA D, PETKOV,LAZAR I
Year of Publication 15.01.1985

by MAKHOVA,LILJANA D, MIKHAJJLOV,DIMO G, KIRCHEVA,RADKA S, ATANASOV,KRASIMIR M, DENEVA,TEMENUZHKA D, PETKOV,LAZAR I
Year of Publication 15.02.1984

by MARINOVA,ATANASIJA T, POPOVA,MAJA M, LAMBOV,SASHKO I, MARINOV,SLAVEJJKO S, PETKOV,LAZAR I, GANCHEVA,TAMARA S
Year of Publication 15.03.1983

by MAKHOVA,LILJANA D, MIKHAJJLOV,DIMO G, MARINOVA,ELENA S, KIRCHEVA,RADKA S, MARKOVA,TANJA N, GRIGOROV,GRIGOR R, DENEVA,TEMENUZHKA D, PETKOV,LAZAR I, MARAZOVA,ISKRA R
Year of Publication 15.04.1987

by RADENKOV,FILIP D, PETKOV,LAZAR I
Year of Publication 12.10.1977

by MAKHOVA,LILJANA D, MIKHAJJLOV,DIMO G, KIRCHEVA,RADKA S, MARKOVA,TANJA N, GRIGOROV,GRIGOR R, DENEVA,TEMENUZHKA D, GROZEVA,ELENA I, PETKOV,LAZAR I, MARAZOVA,ISKRA R, STOJANOVA,JANKA G
Year of Publication 15.04.1987

by SJAROVA,ANTOANETA D, JANKOVA,TODORKA S, MIKHAJJLOV,DIMO G, BELEVSKA,TOSHKA D, NIKOLOVA,ZLATKA G, SIMEONOV,IVAN S, GEORGIEV,GEORGI JA, STENEV,MILKO I, PETKOV,LAZAR I, NAJJDENOVA,KERALINA V, SIPSEV,ROSEN D
Year of Publication 15.10.1986

by KOMITOV,PETR G, SIMEONOV,IVAN S, PETKOV,LAZAR I
Year of Publication 14.01.1983

by KOMITOV,PETR G, SIMEONOV,IVAN S, PETKOV,LAZAR I
Year of Publication 14.01.1983

by KOMITOV,PETR G, SJAROVA,TAMARA S, PETKOV,LAZAR I
Year of Publication 14.01.1983

by KOMITOV,PETR G, SJAROV,STEFAN D, PETKOV,LAZAR I
Year of Publication 14.01.1983

by KOMITOV,PETR G, SJAROVA,ANTOANETA D, PETKOV,LAZAR I
Year of Publication 14.01.1983

by KOMITOV,PETR G, NIKOLOVA,ZLATKA G, PETKOV,LAZAR I
Year of Publication 15.09.1982

by SJAROV,STEFAN D, VLADIMIROV,KIRIL N, PETKOV,LAZAR I
Year of Publication 15.07.1981