by BOROKH G.R.,SU, NURULIN YU.R.,SU, KOLOSOV V.G.,SU, TIKHONOV A.I.,SU, KOROLEV V.S.,SU, CHASOVNIKOV L.L.,SU, USPENSKIJ M.N.,SU, MOSHKOV E.A.,SU
Year of Publication 07.06.1991