@Misc{ LemMik17, author = { Lemenant, Antoine and Mikayelyan, Haye }, title = { Stationarity of the crack-front for the Mumford-Shah problem in 3D }, journal = { }, year = { 2017 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3647/ }, note = { cvgmt preprint} }