by SHVETS EH.A, TSVETKOV P.E, CHURYBKIN N.N, KUZ'MENKO G.A, SOTNIKOV V.N
Year of Publication 27.08.1999

by SHVETS EH.A, TSVETKOV P.E, MATYTSYN V.B, BONDARENKO D.V
Year of Publication 27.07.1998