https://hal-agrosup-dijon.archives-ouvertes.fr/hal-01865853 Contributor : Bernard NicolardotConnect in order to contact the contributor Submitted on : Wednesday, September 5, 2018 - 1:13:56 PM Last modification on : Tuesday, September 7, 2021 - 3:36:11 PM Long-term archiving on: : Thursday, December 6, 2018 - 1:10:05 PM