@Article{ BerPraPue15, author = { Bertrand, Jerome and Pratelli, Aldo and Puel, Marjolaine }, title = { Kantorovich potentials and continuity of total cost for relativistic cost functions }, journal = { J. Math. Pures Appl. }, year = { 2018 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3563/ }, note = { cvgmt preprint} }