(untitled) - Gusarova,N.K.; Trofimov,B.A.; Malysheva,S.F.; Arbuzova,S.N.; Shaikhudinova,S.I.; Dmitriev,V.I.; Polubentsov,A.V.; Albanov,A.I. (Zh. Obshch. Khim.Chem. Abstr., 1993)