A. V. Ryabchunova, E. O. Gavryukova, E. V. Lukinova, and O. N. Kalugin, “Electrical conductance and solvation of 1-butyl-3-methylimidazolium trifluoromethane sulfonate in propylene carbonate”, Khark. Univ. Bull. Chem. Ser., no. 22, pp. 136-141, Dec. 2013.