参考文献

Ngok, Fam Khoang; Kel'ginbaev, A. N.; Gorovits, M. B.; Abubakirov, N. K. Chemistry of Natural Compounds, 1980 , vol. 16, # 3 p. 262 - 264 Khimiya Prirodnykh Soedinenii, 1980 , vol. 16, # 3 p. 352 - 354