Arai, Noriyoshi; Sato, Keisuke; Azuma, Keita; Ohkuma, Takeshi Angewandte Chemie - International EditionAngew. Chem., 20132013, vol. 52125, # 2913 p. 7500 - 75047648 - 7652,5 doi: 10.1002/anie.201303423