Petyunin,P.A. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1976 , vol. 12, p. 873 - 875
Khimiya Geterotsiklicheskikh Soedinenii, 1976 , vol. 12, p. 1056 - 1059

Petyunin,P.A. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1976 , vol. 12, p. 873 - 875
Khimiya Geterotsiklicheskikh Soedinenii, 1976 , vol. 12, p. 1056 - 1059