Ivasyshen, S. D. and Litovchenko, V. A. (2009) “Cauchy problem for one class of degenerate parabolic equations of Kolmogorov type with positive genus”, Ukrains’kyi Matematychnyi Zhurnal, 61(8), pp. 1066-1087. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3081 (Accessed: 9February2023).