Huo, Tianrui, et al. “Hydrogen Bonding and Interaction Between Diethylene Glycol and Water: Density, Excess Molar Volume and Spectral Studies”. Asian Journal of Chemistry, vol. 22, no. 9, July 2010, pp. 6805-14, https://asianpubs.org/index.php/ajchem/article/view/11914.