HIDDEN REGULARITY FOR A STRONGLY NON LINEAR WAVE EQUATION. Pesquimat, [S. l.], v. 1, n. 1, 1998. DOI: 10.15381/pes.v1i1.8575. Disponível em: https://revistasinvestigacion.unmsm.edu.pe/index.php/matema/article/view/8575.. Acesso em: 28 apr. 2024.