Pérez-Guerrero, Vicente2015-05-212015-05-2120091697-3127http://hdl.handle.net/11441/24967application/pdfspaAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess