1. Institut d’Astrophysique de Paris
2. Peking University
3. Karlsruhe Institute of Technology
4. Université Paris Diderot
5. Inter-University Institute For High Energies (IIHE)
6. Vrije Universiteit Brussels
7. Vrije Universiteit Brussel (VUB)
8. IFLP - CCT La Plata - CONICET
9. Universidad Nacional de La Plata