Hemmert, Catherine; Renz, Michael; Gornitzka, Heinz; Soulet, Stephanie; Meunier, Bernard Chemistry - A European Journal, 1999, vol. 5, # 6 p. 1766 - 1774 doi: 10.1002/(SICI)1521-3765(19990604)5:6<1766::AID-CHEM1766>3.0.CO;2-Z