1. T. Welton, Chem. Rev. 99, 2071–2084 (1999)
2. N.V. Plechkova, K.R. Seddon, Chem. Soc. Rev. 37, 123–150 (2008)
3. N.V. Plechkova, K.R. Seddon, in Methods and Reagents for Green Chemistry, ed. by P. Tundo, A. Perosa, F. Zecchini (Wiley, New York, 2007), pp. 105–130
4. A.P. Abbott, R.C. Harris, K.S. Ryder, C. D’Agostino, L.F. Gladden, M.D. Mantle, Green Chem. 13, 82–90 (2011)
5. A.P. Abbott, G. Capper, D.L. Davies, R.K. Rasheed, V. Tambyrajah, Chem. Commun. 70–71, 22 (2003)