, Ripoll, J.B.; Ayats Calsat, J. “Special Anchorages for the New Railway Bridge over the River Duero in Oporto (Portugal)”. Hormigón y Acero 40, no. 170 (January 1, 1989). Accessed July 3, 2024. https://hormigonyacero.com/index.php/ache/article/view/840.