by (USSR)M.L.Krasonv;by (United States)S.Lang; by (USSR)A.V.Efimov;by (United States)M.Mandl; by (USSR)O.V.Krylov;by (United States)P.M.Henry; by (USSR)M.Prives;by (United States)N.S.Sahana; by (USSR)A.M.Prokhorov;by (United States)M.A.Omar; by (USSR)M.Baryshnikov;by (United States)C.R.Jones; by (USSR)D.N.Trifonov;by (United States)L.K.Williams; by (USSR)I.Duncan; (United States)C.Payne; by (USSR)S.P.Strelkov;by (United States)V.I.Arnold; by (USSR)S.Tolansky;by (United States)R.D.Juday;