2016-02-162016-02-1620031133-45252255-3924http://hdl.handle.net/11441/34800application/pdfspaAtribución-NoComercial-SinDerivadas 4.0 Españahttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.12795/spal.2003.i12.15https://idus.us.es/xmlui/handle/11441/34800