Serov, N. I. and Cherniga, R. M. (2003) “Lie Symmetries, <em class="a-plus-plus">Q</em&gt;-Conditional Symmetries, and Exact Solutions of Nonlinear Systems of Diffusion-Convection Equations”, Ukrains’kyi Matematychnyi Zhurnal, 55(10), pp. 1340-1355. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/4006 (Accessed: 30May2024).