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参考文献
Kur'yanov, V.O.; Tsikalov, V.V.; Zemlyakov, A.E.; Chirva, V.Ya. Chemistry of Natural Compounds, 1994 , vol. 30, # 3 p. 390 - 394 Khimiya Prirodnykh Soedinenii, 1994 , # 3 p. 424 - 429
Kur'yanov, V.O.; Tsikalov, V.V.; Zemlyakov, A.E.; Chirva, V.Ya. Chemistry of Natural Compounds, 1994 , vol. 30, # 3 p. 390 - 394 Khimiya Prirodnykh Soedinenii, 1994 , # 3 p. 424 - 429