G. ABDULAHAD, J.; M. MORSHED, A. Waves and Ripples in Liquid Films. AL-Rafidain Journal of Computer Sciences and Mathematics, [S. l.], v. 1, n. 2, p. 187–198, 2004. DOI: 10.33899/csmj.2004.8153 . Disponível em: https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36509. Acesso em: 17 dec. 2025.