@Misc{ RicJesLeD16, author = { Jesús A. Jaramillo, and Le Donne, Enrico and Richard M. Aron, }, title = { Smooth surjections and surjective restrictions }, journal = { }, year = { 2016 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4154/ }, note = { cvgmt preprint} }