GESCHWINDNER, Louis F. A Beam Design Aid for Structural Tubing. Engineering Journal, [S. l.], v. 47, n. 1, p. 41–46, 2010. DOI: 10.62913/engj.v47i1.972. Disponível em: https://ej.aisc.org/index.php/engj/article/view/972. Acesso em: 9 oct. 2024.