http://www.a-desk.org/highlights/Un-gran-margen-de-errores.htmlhttp://www.a-desk.org/highlights/Un-gran-margen-de-errores.html

http://barcelona.lecool.com/event/margen-de-error/http://barcelona.lecool.com/event/margen-de-error/

http://www.e-artnow.org/announcement/article/ACTION/9450/