SEROV, N. I.; CHERNIGA, R. M. Lie symmetries and exact solutions of nonlinear equations of heat conductivity with convection term. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 9, p. 1262–1270, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5125. Acesso em: 5 dec. 2025.