@Article{ MagPinGar17, author = { Magnani, Valentino and Pinamonti, Andrea and Speight, Gareth }, title = { Porosity and differentiability of Lipschitz maps from stratified groups to Banach homogeneous groups }, journal = { Ann. Mat. Pura Appl. }, year = { 2019 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3474/ }, note = { cvgmt preprint} }