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参考文献
Usov, V. A.; Dorofeev, I. A.; Timokhina, L. V.; Voronkov, M. G. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 7 p. 1407 - 1408 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 7 p. 1566
Usov, V. A.; Dorofeev, I. A.; Timokhina, L. V.; Voronkov, M. G. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 7 p. 1407 - 1408 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 7 p. 1566