Cruz Ruiz, Juan2026-02-252020-10-022019-12-0110.17979/spudc.9788497497312.035https://pepa.une.es/handle/123456789/65392pp. 35-47CC BY-NC-SA 4.0 Internacional (Atribución-NoComercial-CompartirIgual)https://creativecommons.org/licenses/by-nc-sa/4.0/