http://www.ena.fr/en/accueil.php

http://www.ens.fr/?lang=en

http://www.polytechnique.edu/jsp/accueil.jsp?CODE=36392593&LANGUE=1

http://www.independent.co.uk/news/world/europe/revolt-at-sarkozys-attempts-to-open-igrandes-ecolesi-to-poorer-students-1859016.html

http://www.vision.org/visionmedia/article.aspx?id=23989