Wahler Denis, Badalassi Fabrizio, Crotti Paolo, Reymond Jean-Louis
Department of Chemistry & Biochemistry University of Bern Freiestrasse 3, 3012 Bern (Switzerland).
Angew Chem Int Ed Engl. 2001 Dec 3;40(23):4457-4460. doi: 10.1002/1521-3773(20011203)40:23<4457::aid-anie4457>3.0.co;2-h.