Fang, Kun; Dong, Guo-Qiang; Gong, Hai; Liu, Na; Li, Zhen-Gang; Zhu, Shi-Ping; Miao, Zhen-Yuan; Yao, Jian-Zhong; Zhang, Wan-Nian; Sheng, Chun-Quan Chinese Chemical Letters, 2014, vol. 25, # 7 p. 978 - 982 doi: 10.1016/j.cclet.2014.03.043