Jian, Fangfang; Bei, Fengli; Yang, Xujie; Lu, Lude; Wang, Xin; Razak, Ibrahim Abdul; Sundara Raj, S. Shanmuga; Fun, Hoong-Kun Acta Crystallographica, Section C: Crystal Structure Communications, 2001 , vol. 57, # 2 p. 176 - 177