Hafez, Taghrid S.
Phosphorus, Sulfur and Silicon and the Related Elements, 1991 , vol. 61, # 3.4 p. 341 - 349

Ivashchenko, A. V.; Drushlyak, A. G.; Titov, V. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 5 p. 537 - 542
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 5 p. 667 - 672

Ivashchenko, A. V.; Drushlyak, A. G.; Titov, V. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 5 p. 537 - 542
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 5 p. 667 - 672

Hafez, Taghrid S.
Phosphorus, Sulfur and Silicon and the Related Elements, 1991 , vol. 61, # 3.4 p. 341 - 349

Ivashchenko, A. V.; Drushlyak, A. G.; Titov, V. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 5 p. 537 - 542
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 5 p. 667 - 672

Hafez, Taghrid S.
Phosphorus, Sulfur and Silicon and the Related Elements, 1991 , vol. 61, # 3.4 p. 341 - 349