Iloukhani, H., et al. “Direct Determination of the Intermolecular Potential of Kr-N2, Xe-N2 and He-SF6 Form the Extended Principle of Corresponding States”. Asian Journal of Chemistry, vol. 13, no. 1, Mar. 2010, pp. 163-8, https://asianpubs.org/index.php/ajchem/article/view/22544.