by MIRZOYAN GRACHIK M,SU, GRIGORYAN GAGIK P,SU, GASPARYAN YURIJ A,SU, BARDUGIMEOSYAN ARAM R,SU, ARUTYUNYAN ALEKSANDR R,SU, CHUDINOV YURIJ M,SU, VORONOV KONSTANTIN G,SU, MARGARYAN SAMVEL A,SU
Year of Publication 30.12.1990