BELAN, E. P.; LYKOVA, O. B. Theorem on the central manifold of a nonlinear parabolic equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 8, p. 1021–1036, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5246. Acesso em: 6 dec. 2025.