@Article{ CaMaMaPlTi19, author = { Carioni, Marcello and Marchese, Andrea and Massaccesi, Annalisa and Pluda, Alessandra and Tione, Riccardo }, title = { The oriented mailing problem and its convex relaxation }, journal = { Nonlinear Anal. }, year = { 2020 }, doi = { 10.1016/j.na.2020.112035 }, volume = { 199 }, pages = { }, URL = { http://cvgmt.sns.it/paper/4237/ }, note = { cvgmt preprint} }