Hsu, Che-Hsiung; Chu, Kuo-Ching; Lin, Yih-Shyan; Han, Jeng-Liang; Peng, Yu-Shiang; Ren, Chien-Tai; Wu, Chung-Yi; Wong, Chi-Huey Chemistry - A European Journal, 2010 , vol. 16, # 6 p. 1754 - 1760