Belokolos, E. D. “Kinetic Equations and Integrable Hamiltonian Systems”. Ukrains’kyi Matematychnyi Zhurnal 57, no. 6 (June 25, 2005): 731–741. Accessed May 7, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3639.