Llera Rivera, Virginia2013-03-262013-03-2619991134-7627http://hdl.handle.net/10641/677spaAttribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Calderón de la Barca, Pedrojournal articleopen access