https://hal-cea.archives-ouvertes.fr/cea-01873010 Contributor : Frédéric OttConnect in order to contact the contributor Submitted on : Wednesday, September 12, 2018 - 5:15:14 PM Last modification on : Tuesday, January 4, 2022 - 4:49:48 AM Long-term archiving on: : Thursday, December 13, 2018 - 2:53:44 PM