Falk, Anna; Goederz, Anna-Lena; Schmalz, Hans-Guenther Angewandte Chemie - International Edition, 2013 , vol. 52, # 5 p. 1576 - 1580 Angew. Chem., 2013 , vol. 125, # 5 p. 1617 - 1621,5