Vdovin, A. D.; Batsuren, D.; Batirov, E. Kh.; Yagudaev, M. R.; Malikov, V. M.
Chemistry of Natural Compounds, 1983 , vol. 19, # 4 p. 413 - 416
Khimiya Prirodnykh Soedinenii, 1983 , vol. 19, # 4 p. 441 - 445