Migalina,Yu.V. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1977 , vol. 13, p. 49 - 53
Khimiya Geterotsiklicheskikh Soedinenii, 1977 , vol. 13, p. 58 - 62

Migalina,Yu.V. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1977 , vol. 13, p. 49 - 53
Khimiya Geterotsiklicheskikh Soedinenii, 1977 , vol. 13, p. 58 - 62