Segura-Castillo, L., A. Aguado, A. De La Fuente Antequera, and A. Josa. “Bi-Layer Diaphragm Walls: Structural and Sectional Analysis”. Journal of Civil Engineering and Management, vol. 22, no. 5, May 2016, pp. 645-54, doi:10.3846/13923730.2014.914085.