https://hal-riip.archives-ouvertes.fr/pasteur-01688934 Contributor : Michel CourcellesConnect in order to contact the contributor Submitted on : Friday, January 19, 2018 - 8:27:15 PM Last modification on : Thursday, May 19, 2022 - 3:00:02 PM Long-term archiving on: : Thursday, May 24, 2018 - 8:02:15 AM