Optimum Design of Trapezoidal Combined Footings. Tikrit Journal of Engineering Sciences, [S. l.], v. 14, n. 1, p. 85–115, 2007. DOI: 10.25130/tjes.14.1.05. Disponível em: https://www.tj-es.com/ojs/index.php/tjes/article/view/671.. Acesso em: 10 sep. 2026.