by CHERNYAEV LEONARD I,SU, VARNAVSKIJ EVGENIJ A,SU, ZHERKO ALEKSANDR A,SU, YUKHOVICH VSEVOLOD M,SU, NIGIRISH IVAN G,SU, SHISHKANOV GEORGIJ YA,SU, KARPITSKIJ VLADIMIR F,SU
Year of Publication 07.09.1986