@Article{ LeLeMoVi14, author = { Le Donne, Enrico and Leonardi, Gian Paolo and Monti, Roberto and Vittone, Davide }, title = { Corners in non-equiregular sub-Riemannian manifolds }, journal = { ESAIM Control Optim. Calc. Var. }, year = { 2015 }, volume = { 21 }, number = { 3 }, pages = { 625--634 }, URL = { http://cvgmt.sns.it/paper/2388/ }, note = { cvgmt preprint} }