With the support of the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2011) ERC SAW project is linked to the unit research SPHERE (UMR 7219 – CNRS, Universities Paris Diderot & Paris 1 Panthéon-Sorbonne) Principal investigator: Karine Chemla Co-directors: Agathe Keller & Christine Proust