Source: https://www.campusfrance.org/sites/default/files/medias/documents/2017-12/Lettre%20%C3%A0%20Thierry%20Mandon%20-%20Accueil%20Chercheurs%20et%20Doctorants%20%C3%A9trangers%20en%20France%20-%20Forum%20Campus%20France%20-%20Novembre%202016.pdf