Cremlyn, Richard J.; Lynch, John M.; Swinbourne, Frederick J., Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 57, # 3/4, p. 173 - 179
Cremlyn, Richard J.; Lynch, John M.; Swinbourne, Frederick J., Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 57, # 3/4, p. 173 - 179