Olivier Houdé | Université d’automne du SNUipp | 2009.
[youtube https://www.youtube.com/watch?v=zx5heAvb1OA&w=560&h=315]
[youtube https://www.youtube.com/watch?v=zx5heAvb1OA&w=560&h=315]
[youtube https://www.youtube.com/watch?v=clRxZeZyiAg&w=560&h=315]