Gaponik, P. N.; Karavai, V. P.; Grigor'ev, Yu. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 11 p. 1255 - 1258
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 11 p. 1521 - 1524
Gaponik, P. N.; Grigor'ev, Yu. V.; Karavai, V. P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 4 p. 477 - 478
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 4 p. 566 - 567