Sauer; Adkins
Journal of the American Chemical Society, 1938 , vol. 60, p. 402,406

Ukrainets, I. V.; Taran, S. G.; Gorokhova, O. V.; Marusenko, N. A.; Kovalenko, S. N.; et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 2 p. 167 - 175
Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 2 p. 195 - 203

Ukrainets, I. V.; Taran, S. G.; Gorokhova, O. V.; Marusenko, N. A.; Kovalenko, S. N.; et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1995 , vol. 31, # 2 p. 167 - 175
Khimiya Geterotsiklicheskikh Soedinenii, 1995 , # 2 p. 195 - 203

Sauer; Adkins
Journal of the American Chemical Society, 1938 , vol. 60, p. 402,406