GordevskiiV. D. and GukalovA. A. (2017) “Approximate solutions of the Boltzmann equation with infinitely many modes”, Ukrains’kyi Matematychnyi Zhurnal, 69(3), pp. 311-323. Available at: http://umj.imath.kiev.ua/index.php/umj/article/view/1698 (Accessed: 25November2020).