Jagodzinski, Tadeusz; Jagodzinska, Elzbieta; Jablonski, Zygfryd
Tetrahedron, 1986 , vol. 42, # 13 p. 3683 - 3688

Demchuk, D. V.; Lutsenko, A. I.; Troyanskii, E. I.; Nikishin, G. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1989 , vol. 38, # 8.2 p. 1690 - 1695
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1989 , # 8 p. 1843 - 1848