Jaime Ramírez, Hélios2013-02-042013-02-0420061134-7627http://hdl.handle.net/10641/493spaAttribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/Bessière, JeanCrítica e interpretaciónjournal articleopen access