by LIEPIN G.K, MEZHINYA G.R, VIESTUR U.E, DUNTSIS M.E
Year of Publication 31.10.1982

by MEZHINYA G.R.,SU, LIEPINSH G.K.,SU, DUNTSE M.E.,SU, VIESTUR U.E.,SU
Year of Publication 05.04.1980

by LATSAR A.A.,SU, VIESTURE Z.A.,SU, SALMANE T.M.,SU, MOSKVIN V.D.,SU, BEKER M.E.,SU, MEZHINYA G.R.,SU, LAUKEVITS YA.YA.,SU, LUKA V.T.,SU, VIESTUR U.E.,SU
Year of Publication 15.04.1978

by G.R. MEZHINYA, Z.A. VIESTURE, T.M. SALMANE, V.T. LUKA, A.A. LATSARS, M.E. BEKER, U.E. VIESTUR, Y.Y. LAUKEVITS ETV.D. MOSKVIN
Year of Publication 11.10.1974