Enders, Dieter; Vicario, Jose L.; Job, Andreas; Wolberg, Michael; Mueller, Michael Chemistry - A European Journal, 2002, vol. 8, # 18 p. 4272 - 4284 doi: 10.1002/1521-3765(20020916)8:18<4272::AID-CHEM4272>3.0.CO;2-K