González-Bravo, Carlos, Francisco Arriaga-Martitegui, Luis Maldonado-Ramos, and Rafael Díez-Barra. “Bending Reinforcement of Timber Beams With Steel Cross Sections on the Upper Face”. Materiales de Construcción 60, no. 298 (June 30, 2010): 123–135. Accessed May 3, 2024. https://materconstrucc.revistas.csic.es/index.php/materconstrucc/article/view/171.