参考文献

Wirtz, Gabriele M.; Bornemann, Claus; Giger, Alfred; Mueller, Robert K.; Schneider, Heinz; Schlotterbeck, Goetz; Schiefer, Gerhard; Woggon, Wolf-Dietrich Helvetica Chimica Acta, 2001 , vol. 84, # 8 p. 2301 - 2315