%0 Journal Article %T Initial state in relativistic nuclear collisions and Color Glass Condensate %A F. Gelis %J Physics %D 2014 %I arXiv %R 10.1016/j.nuclphysa.2014.09.028 %X In this talk, I discuss recent works related to the pre-hydrodynamical stages of ultra-relativistic heavy ion collisions. %U http://arxiv.org/abs/1412.0471v1