KLEVCHUK, I. I. Bifurcation of the state of equilibrium in the system of nonlinear parabolic equations with transformed argument. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 51, n. 10, p. 1342–1351, 1999. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4733. Acesso em: 5 dec. 2025.