by KOPANEV ALEKSANDR M,SU, LASKORIN BORIS N,SU, TAKEZHANOV SAUK T,SU, KULENOV AKHAT S,SU, YATSUK VALENTIN V,SU, GOLDOBINA VERA A,SU, SAMALTYROV TURSUN K,SU, VORONIN IVAN S,SU, PASHKOV GENNADIJ L,SU
Year of Publication 25.02.1978