@Misc{ BelBetPao22, author = { Bellettini, Giovanni and Betti, Alessandro and Paolini, Maurizio }, title = { A free boundary singular transport equation as a formal limit of a discrete dynamical system }, journal = { }, year = { 2022 }, pages = { }, URL = { http://cvgmt.sns.it/paper/5600/ }, note = { cvgmt preprint} }