LADEVEZE, P.; ARNAUD, L. .; ROUCH, P. .; BLANZE, C. . La Theorie Variationnelle des Rayons Complexes pour le calcul des vibrations moyennes frequences. European Journal of Computational Mechanics, [S. l.], v. 9, n. 1-3, p. 67–88, 2000. Disponível em: https://journals.riverpublishers.com/index.php/EJCM/article/view/2929. Acesso em: 11 jul. 2024.