King Alistair W T, Asikkala Janne, Mutikainen Ilpo, Järvi Paula, Kilpeläinen Ilkka
Department of Chemistry, University of Helsinki FIN-00014, PO Box 55 (A. I. Virtasen Aukio 1), Finland.
Angew Chem Int Ed Engl. 2011 Jul 4;50(28):6301-5. doi: 10.1002/anie.201100274. Epub 2011 May 23.