National Seminar Geographic Information Systems (GIS) and urban spatial management Receipt of abstracts: from 01/05/ to 30/06/2021 Notification of acceptance: from 05/09/2021. Receipt of abstracts: from 01/05/ to 31/07/2021 Notification of acceptance: from 15/09/2021. Contacts Email: seminaire.gtu.oeb2021@gmail.com sig.gtu2021@univ-oeb.dz Tél :05.59.25.12.54 /06.57.50.05.64 To Download: dépliant fr dépliant En dépliant Ar