Drozdova, O. A.; Astrat'ev, A. A.; Kuznetsov, L. L.; Selivanov, V. F.
Journal of Organic Chemistry USSR (English Translation), 1982 , vol. 18, p. 2063 - 2067
Zhurnal Organicheskoi Khimii, 1982 , vol. 18, # 11 p. 2335 - 2340