Brunetière, N. ., and B. Tournerie. “Finite Element Solution of the Energy Equation in Lubricated Contacts: Application to Mechanical Face Seals”. European Journal of Computational Mechanics, vol. 14, no. 2-3, June 2005, pp. 213-35, https://journals.riverpublishers.com/index.php/EJCM/article/view/2231.