Li, Gang-Yue; Qian, Xu-Hong; Yan, Sheng-Gang; Cui, Jing-Nan; Huang, Qing-Chun; Zhang, Rong; Liu, Feng-Yu; Cui, Da-Wei Phosphorus, Sulfur and Silicon and the Related Elements, 2006 , vol. 181, # 12 p. 2851 - 2861