Chen, D., Schmitkamp, M., Franciò, G., Klankermayer, J., & Leitner, W. (2008). Enantioselective Hydrogenation with Racemic and Enantiopure Binap in the Presence of a Chiral Ionic Liquid. Angewandte Chemie, 120, 7449-7451. doi:10.1002/ange.200801995.