Kuznetsov,V.V. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1978 , vol. 14, p. 19 - 22
Khimiya Geterotsiklicheskikh Soedinenii, 1978 , vol. 14, # 1 p. 26 - 30

Kuznetsov,V.V. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1978 , vol. 14, p. 19 - 22
Khimiya Geterotsiklicheskikh Soedinenii, 1978 , vol. 14, # 1 p. 26 - 30