SONNER, S. Global Attractors for Semilinear Parabolic Problems Involving X-Elliptic Operators. Bruno Pini Mathematical Analysis Seminar, [S. l.], v. 6, n. 1, p. 39–53, 2015. DOI: 10.6092/issn.2240-2829/5889. Disponível em: https://mathematicalanalysis.unibo.it/article/view/5889. Acesso em: 3 may. 2024.