Hardegger, Leo A.; Kuhn, Bernd; Spinnler, Beat; Anselm, Lilli; Ecabert, Robert; Stihle, Martine; Gsell, Bernard; Thoma, Ralf; Diez, Joachim; Benz, Joerg; Plancher, Jean-Marc; Hartmann, Guido; Banner, David W.; Haap, Wolfgang; Diederich, Francois Angewandte Chemie - International Edition, 2011 , vol. 50, # 1 p. 314 - 318