Petrenko, S. M., A. L. Rebenko, and M. V. Tertychnyi. “Quasicontinuous Approximation in Classical Statistical Mechanics”. Ukrains’kyi Matematychnyi Zhurnal 63, no. 3 (March 25, 2011): 369–384. Accessed December 5, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/2723.