Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa2019-08-292019-08-2919981134-8259https://academica-e.unavarra.es/handle/2454/34658application/pdfspaLicencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internationalinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess