XU, Leiand; LIU, Yuxin. Story-Based Effective Length Factors for Unbraced PR Frames. Engineering Journal, [S. l.], v. 39, n. 1, p. 13–29, 2002. DOI: 10.62913/engj.v39i1.770. Disponível em: https://ej.aisc.org/index.php/engj/article/view/770. Acesso em: 9 oct. 2024.