参考文献

Ilia, Gheorghe; Iliescu, Smaranda; Dehelean, Gheorghe; Popa, Adriana; Pacureanu, Liliana; Macarie, Lavinia; Pascariu, Aurelia Phosphorus, Sulfur and Silicon and Related Elements, 2002 , vol. 177, # 8-9 p. 2049 - 2050