, Arenas de Pablo, J. J.; Villegas Cabredo. “High Piers of Viaducts Constructed by Advancing Overhangs”. Hormigón y Acero 35, no. 153 (January 8, 1984). Accessed January 9, 2025. http://37.35.109.41/index.php/ache/article/view/1029.