Kong, Xu-Dong; Ma, Qian; Zhou, Jiahai; Zeng, Bu-Bing; Xu, Jian-He Angewandte Chemie - International Edition, 2014 , vol. 53, # 26 p. 6641 - 6644 Angew. Chem., 2014 , p. 6759 - 6762,4