SUN, T.-Y.; CHEN, K.-H. ON INTERNAL GRAVITY WAVES. Tamkang Journal of Mathematics, [S. l.], v. 29, n. 4, p. 249–269, 1998. DOI: 10.5556/j.tkjm.29.1998.4254. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4254. Acesso em: 4 may. 2024.