A. S. Kucherenko, D. E. Siyutkin, V. O. Muraviev, M. I. Struchkova, S. G. Zlotin, “1(<i>R</i>),2(<i>R</i>)-Bis[(<i>S</i>)-prolinamido]cyclohexane/[bmim][BF<sub>4</sub>] ionic liquid as an efficient catalytic system for direct asymmetric aldol reactions”, Mendeleev Commun., 17:5 (2007), 277–278