Grass Robert N, Athanassiou Evagelos K, Stark Wendelin J
Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich, Wolfgang-Pauli-Strasse 10, 8093 Zurich, Switzerland.
Angew Chem Int Ed Engl. 2007;46(26):4909-12. doi: 10.1002/anie.200700613.