Lin, Pen-Yuan; Bellos, Konstantinos; Werry, Juergen; Assithianakis, Petros; Weiss, Rainer; Mall, Thomas; Bentz, Gunther; Stamm, Helmut Journal fur Praktische Chemie - Chemiker - Zeitung, 1996 , vol. 338, # 3 p. 270 - 278