Mechanisms of crossing for two optical waveguides based on dark spatial solitons. Acta Universitaria, [S. l.], v. 13, n. 3, p. 33–38, 2003. DOI: 10.15174/au.2003.247. Disponível em: https://www.actauniversitaria.ugto.mx/index.php/acta/article/view/247. Acesso em: 28 abr. 2026.