Domínguez Lasierra, Juan2013-03-152013-03-1519991134-7627http://hdl.handle.net/10641/653spaAttribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Bécquer, Gustavo Adolfojournal articleopen access