https://hal.inria.fr/hal-01824554 Contributor : Mireille RegnierConnect in order to contact the contributor Submitted on : Wednesday, June 27, 2018 - 12:43:05 PM Last modification on : Friday, February 4, 2022 - 3:23:45 AM Long-term archiving on: : Thursday, September 27, 2018 - 3:28:13 AM