Sycheva,T.P. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1966 , vol. 2, p. 250 - 252
Khimiya Geterotsiklicheskikh Soedinenii, 1966 , vol. 2, p. 348 - 351

Sycheva,T.P. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1966 , vol. 2, p. 250 - 252
Khimiya Geterotsiklicheskikh Soedinenii, 1966 , vol. 2, p. 348 - 351

Sycheva,T.P. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1966 , vol. 2, p. 250 - 252
Khimiya Geterotsiklicheskikh Soedinenii, 1966 , vol. 2, p. 348 - 351