(untitled) - Gusarova,N.K.; Trofimov,B.A.; Mal’kina,A.G.; Shaikhudinova,S.I.; Belogorlova,N.A.; Arbuzova,S.N.; Nepomnyashchikh,K.V.; Dmitriev,V.I. (Zh. Obshch. Khim.Chem. Abstr., 1998)