COULOMBEL, Jean-François. The Leray-Gårding method for finite difference schemes. II.: Smooth crossing modes. North-Western European Journal of Mathematics, [S. l.], n. 7, p. 151–184, 2021. Disponível em: https://nwejm.univ-lille.fr/index.php/nwejm/article/view/24.. Acesso em: 18 oct. 2024.