@Misc{ DweSan16, author = { Dweik, Samer and Santambrogio, Filippo }, title = { Summability estimates on transport densities with Dirichlet regions on the boundary via symmetrization techniques }, journal = { }, year = { 2017 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3072/ }, note = { cvgmt preprint} }