by (USSR)I.FROLOV;by (United States)P.EDWARDS; by (USSR)I.Duncan; (United States)C.Payne; by (USSR)O.V.Krylov;by (United States)P.M.Henry; by (USSR)M.Prives;by (United States)N.S.Sahana; by (USSR)I.S.Dmitriev;by (United States)J.A.Kerr; by (USSR)A.V.Efimov;by (United States)M.Mandl; by (USSR)A.Starkov;by (United States)K.Sandberg; by (USSR)I.A.Rrezanov;by (United States)N.C.Barford; by (USSR)M.L.Krasonv;by (United States)S.Lang; by (USSR)A.V.Bitsadze;by (United States)F.Bloom;