Chemistry of Natural Compounds, , vol. 21, # 5 p. 629 - 635
Khimiya Prirodnykh Soedinenii, , # 5 p. 670 - 676

Chemistry of Natural Compounds, , vol. 21, # 5 p. 629 - 635
Khimiya Prirodnykh Soedinenii, , # 5 p. 670 - 676

Gromova, A. S.; Lutskii, V. I.; Semenov, A. A.; Valeev, R. B.; Kalabin, G. A.; El'kin, Yu. N.
Chemistry of Natural Compounds, 1985 , vol. 21, # 5 p. 629 - 635
Khimiya Prirodnykh Soedinenii, 1985 , # 5 p. 670 - 676