Lapkin, I. I.; Pidemskii, E. L.; Ainbinder, N. R.; Goleneva, A. P.; Nedugov, A. N.; Pavlova, N. N.
Pharmaceutical Chemistry Journal, 1984 , vol. 18, # 9 p. 609 - 612
Khimiko-Farmatsevticheskii Zhurnal, 1984 , vol. 18, # 9 p. 1070 - 1074

Foster
Journal of the American Chemical Society, 1939 , vol. 61, p. 2972

Nakanishi; Ikeda
Bulletin of the Chemical Society of Japan, 1983 , vol. 56, # 6 p. 1661 - 1664