2026-04-14https://pepa.une.es/handle/123456789/80754Creative Commons Atribución-NoComercial-CompartirIgual 4.0 Internacional (CC BY-NC-SA 4.0)https://creativecommons.org/licenses/by-nc-sa/4.0/José Luis Ortega Martín0000-0003-4875-0188