BYSZEWSKI, Ludwik. Strong maximum principles for infinite implicit parabolic systems. Annales Mathematicae Silesianae, [S. l.], v. 28, p. 35–46, 2014. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13988. Acesso em: 7 may. 2025.