by KLISSURSKI,BOGDAN B,BG, MALINOV,GEORGI G,BG, GEORGIEV,TODOR G,BG, POPOV,MARIN A,BG
Year of Publication 30.11.1987

by STOJANOVA,GINKA K.,BG, DANOV,NIKODIM D.,BG, GEORGIEV,TODOR G.,BG, GUDEV,NIKOLAJJ K.,BG, VODENICHAROV,PIRIN I.,BG, DIMITRIEV,ANDREJJ S.,BG, CHAK'RJAN,LILJANA S.,BG, NANKOV,NANKO A.,BG, V'LCHEVA,SNEZHANA I.,BG, KOL'OVSKI,VASIL P.,BG, KHRISTAKIEVA,LJUBA I.,BG
Year of Publication 15.02.1989

by PERSHIN SERGEJ P,SU, IVANOV TODOR GEORGIEV,BG
Year of Publication 23.09.1986

by BELYAEVA IDEYA S,SU, SALYAEV RYURIK K,SU, SABIROVA RAISA N,SU, MARKOVA YULIYA A,SU, KDREV TODOR GEORGIEV,BG, GEORGIEVA VELICHKA GEORGIEVA,BG
Year of Publication 15.02.1992

by GVOZDEJJKOVA,MILKA P.,BG GEORGIEV,TODOR P, GVOZDEJJKOV,STOJAN I
Year of Publication 16.05.1983

by BOGDAN BORISOV KLISURSKI,BG, GEORGI GEORGIEV MALINOV,BG, MARIN ALEKSANDROV POPOV,BG, TODOR GEORGIEV GEORGIEV,BG
Year of Publication 30.04.1991