Fu, Xiao-Zhong; Jiang, Feng-Jie; Ou, Yu; Fu, Sheng; Cha, Yu-Feng; Zhang, Shun; Liu, Zong-Yuan; Zhou, Wen; Wang, Ai-Min; Wang, Yong-Lin Chinese Chemical Letters, 2014, vol. 25, # 1 p. 115 - 118 doi: 10.1016/j.cclet.2013.09.013