参考文献

Vasil'ev, A. A.; Cherkaev, G. V.; Nikitina, M. A. Russian Journal of Organic Chemistry, 1993 , vol. 29, # 5.1 p. 735 - 739 Zhurnal Organicheskoi Khimii, 1993 , vol. 29, # 5 p. 889 - 894