MARX, Christopher. The Effective Length of Unbraced Single Story Columns. Engineering Journal, [S. l.], v. 13, n. 1, p. 20–23, 1976. DOI: 10.62913/engj.v13i1.254. Disponível em: https://ej.aisc.org/index.php/engj/article/view/254. Acesso em: 9 oct. 2024.