Experimental and finite element fatigue assessment of the spring clip of the SKL-1 railway fastening system. - Ferreño, Diego; Casado, José Antonio; Carrascal, Isidro Alfonso; Diego, Soraya; Ruiz, Estela; Saiz, María; Sainz-Aja, José Adolfo; Cimentada, Ana Isabel (Engineering Structures, 2019)