@Misc{ AmbColFig14, author = { Ambrosio, Luigi and Colombo, Maria and Figalli, Alessio }, title = { Existence and uniqueness of maximal regular flows for non-smooth vector fields }, journal = { Arch. Ration. Mech. Anal. }, year = { 2015 }, pages = { }, URL = { http://cvgmt.sns.it/paper/2455/ }, note = { cvgmt preprint} }