by KOPTEV VLADIMIR P,SU
Year of Publication 30.04.1979

by KOPTEV VLADIMIR P,SU
Year of Publication 15.08.1977

by GNIDKIN DMITRIJ V,SU, KOPTEV VLADIMIR P,SU
Year of Publication 25.11.1978

by ZADKOV EVGENIJ M,SU, PISKUN YURIJ ,SU, KOPTEV VLADIMIR P,SU
Year of Publication 30.09.1977

by GNIDKIN DMITRIJ V,SU, POPSHE YUON ,SU, KOPTEV VLADIMIR P,SU
Year of Publication 05.09.1977

by PARIKOZHKA IVAN A,SU, GNIDKIN DMITRIJ V,SU, ZADKOV EVGENIJ M,SU, KOPTEV VLADIMIR P,SU
Year of Publication 15.01.1978