1. P. T. Anastas and J. C.Warner, Green chemistry: theory and practice, Oxford University Press, 2000
2. Review of sustainability terms and their definitions
3. F. Kerton and R.Marriott, Alternative Solvents for Green Chemistry, RSC Publishing, 2013
4. Applications of ionic liquids in the chemical industry
5. M. Maase , K.Massonne and U.Vagt, Chemfiles, 5, https://www.sigmaaldrich.com/content/dam/sigma-aldrich/docs/Aldrich/Brochure/al_chemfile_v5_n6.pdf