Daukshas, V.K.; Gaidyalis, P.G.; Labanauskas, L.K.; Gumbaragite, L.F.; Gasperavichene G.A.
Pharmaceutical Chemistry Journal, 1991 , vol. 25, # 10 p. 716 - 718
Khimiko-Farmatsevticheskii Zhurnal, 1991 , vol. 25, # 10 p. 41 - 42