Constable, Edwin C., Catherine E. Housecroft, Marc Creus, Karl Gademann, Bernd Giese, Thomas R. Ward, Wolf-D. Woggon, and Antoinette Chougnet. 2010. “Bioorganic and Bioinorganic Chemistry”. CHIMIA 64 (12):846. https://doi.org/10.2533/chimia.2010.846.