Krasovitskii, B. M.; Shershukov, V. M.; Fedyunyaeva, I. A., Journal of Organic Chemistry USSR (English Translation), 1988, vol. 24, # 6, p. 1169 - 1172
Krasovitskii, B. M.; Shershukov, V. M.; Fedyunyaeva, I. A., Journal of Organic Chemistry USSR (English Translation), 1988, vol. 24, # 6, p. 1169 - 1172