Wehmschulte, Rudolf J.; Power, Philip P.
Journal of the American Chemical Society, 1997 , vol. 119, # 12 p. 2847 - 2852

Pavlyuchenko, A. I.; Smirnova, N. I.; Korotkova, N. I.; Kovshev, E. I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 10 p. 1143 - 1144
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 10 p. 1389 - 1391

Wehmschulte, Rudolf J.; Power, Philip P.
Journal of the American Chemical Society, 1997 , vol. 119, # 12 p. 2847 - 2852