by STEPANOVA L.P.,SU, GUMEROVA V.S.,SU, RUKASOV A.F.,SU, RICHMOND G.KH.,SU, SIMONENKO T.S.,SU, SHAMAEV V.S.,SU, VASILEV A.V.,SU, GOLOVANENKO B.I.,SU, LIAKUMOVICH A.G.,SU
Year of Publication 05.09.1977