Doy, N., McHale, G., Newton, M. I., Hardacre, C., Ge, R., MacInnes, J. M., Kuvshinov, D., & Allen, R. W. (2010). Small volume laboratory on a chip measurements incorporating the quartz crystal microbalance to measure the viscosity-density product of room temperature ionic liquids. Biomicrofluidics, 4(1), Article 014107. https://doi.org/10.1063/1.3353379