Noort, Paul C. M. van; Vermeeren, Hans P. W.; Louw, Robert
Recueil: Journal of the Royal Netherlands Chemical Society, 1983 , vol. 102, # 6 p. 312 - 321

Almond et al.
Canadian Journal of Chemistry, 1955 , vol. 33, p. 679,680

Godovikov, N. N.; Vikhreva, L. A.; Babasheva, K. K.; Sherstobitov, O. E.; Balashova, E. K.; et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, p. 1453 - 1455
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 7 p. 1602 - 1605