by FEDOROVA V.A.,SU, MINAEV L.I.,SU, TRIFONOVA S.A.,SU, GODOVIKOV N.N.,SU, KUGUSHEVA L.I.,SU, YAKOVLEVA L.I.,SU, BRESTKIN A.P.,SU, KARDANOV N.A.,SU, KOLTSOVA S.S.,SU
Year of Publication 23.08.1991