by (USSR)E.A.Kornejeva;by (United States)Ona Low; by (USSR)M.L.Krasonv;by (United States)S.Lang; by (USSR)A.Simonova;by (United States)Dean R.Snow; by (USSR)A.V.Efimov;by (United States)M.Mandl; by (USSR)I.A.Rrezanov;by (United States)N.C.Barford; by (USSR)I.S.Dmitriev;by (United States)J.A.Kerr; by (USSR)E.D.Haibemenakis;by (United States)J.S.Waugh; by (USSR)A.V.Bitsadze;by (United States)F.Bloom; by (USSR)A.M.Prokhorov;by (United States)M.A.Omar; by (USSR)V.Kostomarov;by (United States)B.Lott;