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Bayardon, J., Holz, J., Sch?ffner, B., Andrushko, V., Verevkin, S., Preetz, A., & B?rner, A. (2007). Propylene Carbonate as a Solvent for Asymmetric Hydrogenations. Angewandte Chemie International Edition, 46(31), 5971–5974. doi:10.1002/anie.200700990 
10.1002/anie.200700990