by YASHIN VALENTIN N,SU, SEREDA ALEKSANDR S,SU, KALASHNIKOV STANISLAV A,SU, NAKROKHIN BORIS G,SU
Year of Publication 30.10.1992

by RUDKO ALEKSANDR V,SU, YASHIN VALENTIN N,SU, STOROZHEV NIKOLAJ F,SU, LYUFT ALBERT V,SU
Year of Publication 23.05.1990