EasyChair Preprint № 2503 Multi-project scheduling problems with multi-skill resource constraints shared by several agents Meya Haroune, Cheikh Dhib, Emmanuel Neron, Ameur Soukhal, Hafedh Mohamed Babou and Mohamedade Farouk Nanne EasyChair preprints are intended for rapid dissemination of research results and are integrated with the rest of EasyChair. January 30, 2020