Swiss Agency for Development and Cooperation (SDC)Sahara and Sahel Observatory (OSS)University of FribourgCentre for Development & Environment (CDE)(University of Fribourg, 2002)
United Nations Human Settlements Programme (UN-Habitat)Shelter Working GroupUnited Nations Human Settlements Programme (UN-Habitat)(United Nations Human Settlements Programme (UN-Habitat), 2011-02)