Dushka, V. A., and R. M. Cherniga. “Diffusive Lotka-Volterra System: Lie Symmetries and Exact and Numerical Solutions”. Ukrains’kyi Matematychnyi Zhurnal 56, no. 10 (October 25, 2004): 1395-1404. Accessed May 28, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3852.