Wan, Yu; Chen, Xiu-Mei; Pang, Li-Ling; Ma, Rui; Yue, Cai-Hui; Yuan, Rui; Lin, Wei; Yin, Wei; Bo, Rong-Cheng; Wu, Hui
Synthetic Communications, 2010 , vol. 40, # 15 p. 2320 - 2328