dos Santos, S. L. B.; Barbosa, B. K.; de Lima, C.; Macedo, A. L.; Mendonça, J. N.; Glososki, G. C.; Lopes, N. P.; Klein, S. I. Sunflower Oil Methanolisys and Glycerol Ketalisation: Stepwise Production of Biofuels and Additives With 3-Methylimidazolium Hydrogensulphate As Catalyst. Eclet. Quim. 2016, 41, 54-59.