by DIMITROV,IVAN L.,BG, CANEV,CANI K.,BG, PETROV,MIKHAIL G.,BG
Year of Publication 15.03.1988

by BUNZHULOV,VIKTOR S.,BG, CANKOV,SAVA O.,BG, PANCHEV,IVAN K.,BG, CVETKOV,KHRISTO K.,BG, IVANOV,ILIJA V.,BG, LAZAROV,STEFAN D.,BG, ZLATAREV,VELIZAR I.,BG, CANEV,CANI K.,BG, PETROV,PET'R D.,BG, DOJJCHINOV,SERGI L.,BG
Year of Publication 15.03.1988