Pena, Jesús2026-02-252021-05-312014-05-3110.17979/spudc.9788497498012.131https://pepa.une.es/handle/123456789/65320pp. 130-144CC BY-NC-SA 4.0 Internacional (Atribución-NoComercial-CompartirIgual)https://creativecommons.org/licenses/by-nc-sa/4.0/