by Moshkin, P. A., Preobrazhenskaya, E. A., Berezina, B. B., Markovich, V. E., Kudrina, E. G., Papsueva, V. P., Sokolina, E. A.
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (1967)

by Klitsunova, N V, Ivanitskaia, L P, Kudinova, M K, Prozorovskaia, N A, Kudrina ES I'auze, G F
Published in Antibiotiki (01.11.1966)