Bednyagina,N.P. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1975 , vol. 11, p. 811 - 813
Khimiya Geterotsiklicheskikh Soedinenii, 1975 , vol. 11, # 7 p. 925 - 927

Bednyagina,N.P. et al.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1975 , vol. 11, p. 811 - 813
Khimiya Geterotsiklicheskikh Soedinenii, 1975 , vol. 11, # 7 p. 925 - 927