Birgé's pictures by Étienne Brunet (©EB), Olivier Degorce (©OD), Anne-Sarah Le Meur (©ASLM), Peter Gabor (©PG), Sonia Cruchon (©SC) or himself (*) are the only ones free of rights for press publications, but only if notifying their names.
On another hand dozens of pictures are on Un d.m.i.'s FaceBook!