https://halshs.archives-ouvertes.fr/halshs-02515016 Contributor : Efeo Ecole Française d'Extrême-OrientConnect in order to contact the contributor Submitted on : Monday, March 23, 2020 - 11:07:11 AM Last modification on : Tuesday, March 15, 2022 - 4:16:03 PM Long-term archiving on: : Wednesday, June 24, 2020 - 2:01:25 PM