Barbier, Jenny; Jansen, Rolf; Irschik, Herbert; Benson, Stefan; Gerth, Klaus; Boehlendorf, Bettina; Hoefle, Gerhard; Reichenbach, Hans; Wegner, Jens; Zeilinger, Carsten; Kirschning, Andreas; Mueller, Rolf Angewandte Chemie - International Edition, 2012, vol. 51, # 5 p. 1256 - 1260 doi: 10.1002/anie.201106435