1)  Participation in the international congress onLandslides

2)Participation in the first Meditarraneen congress onLandslides

3)Chair of the session in the first Meditarraneen congress onLandslides

4) Chair of scientific committe of Participation in the second Meditarraneen congress onLandslides

5) Participation in the International Unsaturated soils Congress in Hon-g Kong