Lakshmi Praveen, P., and Durga P. Ojha. “Molecular Ordering in Nematogens Based on Quantum Mechanics and Intermolecular Forces: A Computational Analysis”. Asian Journal of Chemistry, vol. 22, no. 5, Mar. 2010, pp. 4075-82, https://asianpubs.org/index.php/ajchem/article/view/11650.