@Article{ BruQuo18, author = { Bruè, Elia and Nguyen, Quoc-Hung }, title = { Sharp regularity estimates for solutions of the continuity equation drifted by Sobolev vector fields }, journal = { Analysis and PDE }, year = { 2018 }, pages = { 18 }, URL = { http://cvgmt.sns.it/paper/3894/ }, note = { cvgmt preprint} }