https://cel.archives-ouvertes.fr/cel-01872725 Contributor : Julien VovelleConnect in order to contact the contributor Submitted on : Wednesday, September 12, 2018 - 2:03:29 PM Last modification on : Monday, June 28, 2021 - 2:26:07 PM Long-term archiving on: : Thursday, December 13, 2018 - 1:47:34 PM