Abdel-Rahman, Abdu E.; Awad, Ibrahim M. A.; Bakhite, Etify A., Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 60, # 3/4, p. 189 - 199
Abdel-Rahman, Abdu E.; Awad, Ibrahim M. A.; Bakhite, Etify A., Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 60, # 3/4, p. 189 - 199