Classification of blow-up and global existence of solutions to a system of Petrovsky equations. Electronic Journal of Applied Mathematics, [S. l.], v. 1, n. 2, p. 29–59, 2023. DOI: 10.61383/ejam.20231231. Disponível em: https://ejamjournal.com/index.php/ejam/article/view/ejam.20231231. Acesso em: 25 jun. 2026.