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Year of Publication 23.07.1988

by TIKHONOV VALENTIN G,SU, BANATOV VLADIMIR P,SU, LEVCHENKO ANATOLIJ T,SU, KRYKH BORISLAV V,SU, SKOCHELYAS ANDREJ B,SU, SHIGAEV SEMEN I,SU
Year of Publication 15.06.1990

by NARYTNIK IVAN I,SU, TERSHAK BOGDAN A,SU, PAZYAK NIKOLAJ M,SU, SHIGAEV SEMEN I,SU, SKOCHELYAS ANDREJ B,SU
Year of Publication 23.02.1989