Aflyatunova, R. G.; Aliev, N. A.; Kadyrov, Ch. Sh.; Yagudaev, M. R.
Chemistry of Natural Compounds, 1983 , vol. 19, # 4 p. 478 - 482
Khimiya Prirodnykh Soedinenii, 1983 , vol. 19, # 4 p. 507 - 511