Kromer, Jens; Rios-Carreras, Idoia; Fuhrmann, Gerda; Musch, Christiane; Wunderlin, Markus; Debaerdemaeker, Tony; Mena-Osteritz, Elena; Bauerle, Peter Angewandte Chemie - International Edition, 2000, vol. 39, # 19 p. 3481 - 3486 doi: 10.1002/1521-3773(20001002)39:19<3481::AID-ANIE3481>3.0.CO;2-O