La gran velocidad ferroviaria en España: ancho de vía y duplo-red = The high-speed railway in Spain: rail gauge and double-network. Polígonos [Internet]. 2002 Nov. 23 [cited 2026 May 3];(11-12):137-65. Available from: https://revistas.unileon.es/index.php/poligonos/article/view/524