@Article{ BaBoLeSi15, author = { Barilari, Davide and Boscain, Ugo and Le Donne, Enrico and Sigalotti, Mario }, title = { Sub-Finsler structures from the time-optimal control viewpoint for some nilpotent distributions }, journal = { Journal of Dynamical and Control Systems }, year = { 2016 }, pages = { }, URL = { http://cvgmt.sns.it/paper/2714/ }, note = { cvgmt preprint} }