RAMM, E. .; BLETZINGER, K.-U. .; REITINGER, R. Shape optimization of shell structures . European Journal of Computational Mechanics, [S. l.], v. 2, n. 3, p. 377–398, 1993. Disponível em: https://journals.riverpublishers.com/index.php/EJCM/article/view/3661. Acesso em: 20 jun. 2026.