<http://www.tranches-de-marketing.com/2011/08/08/le-sondage-a-2-balles-volume-1/success-concept-3/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://www.tranches-de-marketing.com/2011/08/08/le-sondage-a-2-balles-volume-1/success-concept-3/>