ZADRZYŃSKA, E.; ZAJĄCZKOWSKI, W. M. On existence of solutions of mixed problems for parabolic systems. Topological Methods in Nonlinear Analysis, [S. l.], v. 2, n. 1, p. 125–145, 1993. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.1993.034. Acesso em: 18 apr. 2024.