Suhrada, Christopher P.; Selcuki, Cenk; Nendel, Maja; Cannizzaro, Carina; Houk; Rissing, Peter-Juergen; Baumann, Dirk; Hasselmann, Dieter Angewandte Chemie - International Edition, 2005 , vol. 44, # 23 p. 3548 - 3552