by KAFEDZHIEVA,SOFIJA D, BAKALOV,ZLATAN I
Year of Publication 16.07.1984

by KAFEDZHIEVA,SOFIJA D, SPIROV,KONSTANTIN B, PANOVA,SILVIJA I, MITKOVA,ELENA A, LEVCHEVA,KHRISTINA G, GRADINAROV,LJUBOMIR S, STEFANOV,GEORGI D, RADEV,DOBRIN S
Year of Publication 15.06.1987

by PETROV,NIKOLA JJ, KAFEDZHIEVA,SOFIJA D, PANOVA,SILVIJA I, ANTOV,CANKO A, KUKOV,SIMEON I, MONOVA,CANKA I, LEVCHEVA,KHRISTINA G, GRADINAROV,LJUBOMIR S, RADEV,DOBRIN S, SIVOVA,ROZA A, STANULOVA,ELENA A
Year of Publication 15.12.1987

by DZHONEV,LJUDMIL K, KAFEDZHIEVA,SOFIJA D, LJUCKANOV,STOJAN S, KALAJJDZHIEVA,ELEONORA I, SHARANKOV, KHRISTO A, JANCHEV,EVGENI K, SAKHNO,KOSTADIN S
Year of Publication 15.10.1981

by KAFEDZHIEVA- KRAPCHEVA,SOFIJA D, SAKHNO,KOSTADIN S
Year of Publication 15.10.1981

by KAFEDZHIEVA-KRAPCZEVA,SOFIJA D, CHARUVIMOVA,MARGITA G, NISHEV,MICHAIL.S, SACHNO,KOSTADIN S, CZAKALOVA,ELENA C, MATEEVA,DONKA D
Year of Publication 15.06.1978

by KOVACHEV,RUMEN I.,BG, KAFEDZHIEVA- KRAPCHEVA,SOFIJA D.,BG, SAKHNO,KOSTADIN S.,BG, MARINOVA,EMILIJA L.,BG, MITEV,JJORDAN K.,BG, TINKOV,STOJAN N.,BG
Year of Publication 12.11.1979