by TODOROV, KAMEN G, ROSHKOVA, ZLATKA G, GRIGOROVAINKA S, RUSINOVA, TEMENUZHKA I, SPASOVA, MARIJANA I, KOZHEV, ANGEL P, PAVLOVA, KOSTANTSA I, ANTOVA, ILKA T
Year of Publication 15.12.1992

by PARASKEVOV, IVAN G, RUSINOVA, TEMENUGA I, SPASOVA, MARIJANA I, KOZHEV, ANGEL P, ANGELOVA, BORJANA L, GEORGIEV, PETKO I, KOZHEV, SVETLOMIR A, ANTOVA, ILKA T, GROMKOVA, STELA K, VALKOV, VLADIMIR V
Year of Publication 29.03.1996

by KOZHEV,ANGEL P, SPASOVA,MARIJANA I
Year of Publication 15.12.1977

by LOZANOVA, ILINKA L, SPASOVA, MARIJANA I, GRONKOVA, STELA K, GEORGIEV, GEORGI I, SPASOV, ZDRAVKO N
Year of Publication 30.12.1998