HUTTON, Charles R. Curvilinear Grid Frames. Engineering Journal, [S. l.], v. 1, n. 3, p. 69–77, 1964. DOI: 10.62913/engj.v1i3.19. Disponível em: https://ej.aisc.org/index.php/engj/article/view/19. Acesso em: 9 oct. 2024.