https://hal.archives-ouvertes.fr/hal-01704800 Contributor : Arnaud AlessandrinConnect in order to contact the contributor Submitted on : Monday, February 12, 2018 - 2:29:33 PM Last modification on : Friday, March 27, 2020 - 3:18:04 PM Long-term archiving on: : Saturday, May 5, 2018 - 4:56:37 AM