Beves, Jonathon E.; Campbell, Christopher J.; Leigh, David A.; Pritchard, Robin G. Angewandte Chemie - International Edition, 2013 , vol. 52, # 25 p. 6464 - 6467 Angew. Chem., 2013 , vol. 125, # 25 p. 6592 - 6595,4