Xu, Hang, et al. “Viscosities and Conductivities of [BMIM][ZnxCly] (x = 1, 1.5, 2; Y = 3, 4, 5) Ionic Liquids at Different Temperatures”. Asian Journal of Chemistry, vol. 27, no. 1, Dec. 2014, pp. 349-52, doi:10.14233/ajchem.2015.17964.