, Gálligo Estévez, J.M.; Rodríguez García,. “Comparative Study on Concrete Permeability Limits in Spanish and European Standards”. Hormigón y Acero 46, no. 195 (January 1, 1995). Accessed May 18, 2024. https://www.hormigonyacero.com/index.php/ache/article/view/549.