LEFFLER, Robert E. Efficiency of Tubular Framing for Medium-Height Buildings. Engineering Journal, [S. l.], v. 16, n. 4, p. 116–126, 1979. DOI: 10.62913/engj.v16i4.340. Disponível em: https://ej.aisc.org/index.php/engj/article/view/340. Acesso em: 9 oct. 2024.