https://hal.inria.fr/hal-02424283 Contributor : Jean-Claude BermondConnect in order to contact the contributor Submitted on : Thursday, December 26, 2019 - 11:10:45 PM Last modification on : Sunday, June 26, 2022 - 12:13:27 PM Long-term archiving on: : Friday, March 27, 2020 - 4:29:27 PM