@Article{ RosSerFig20, author = { Figalli, Alessio and Ros-Oton, Xavier and Serra, Joaquim }, title = { Generic regularity of free boundaries for the obstacle problem }, journal = { Publ. Math. Inst. Hautes Études Sci. }, year = { 2020 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4714/ }, note = { cvgmt preprint} }