Paterson, Ian; Florence, Gordon J.; Gerlach, Kai; Scott, Jeremy P. Angewandte Chemie - International Edition, 2000, vol. 39, # 2 p. 377 - 380 doi: 10.1002/(SICI)1521-3773(20000117)39:2<377::AID-ANIE377>3.0.CO;2-E