by SPIVAK MINA S,SU, KORSUNSKIJ LEONID F,SU, MARKOSYAN DAVID E,SU, KASYAN VANIK N,SU, DOBRONEVSKAYA SVETLANA G,SU, OVAKIMYAN EDUARD V,SU, SMIRNOVA GALINA I,SU, FROST ELENA A,SU
Year of Publication 15.03.1988