@Misc{ Col13, author = { Colombo, Maria and Di Marino, Simone }, title = { Equality between Monge and Kantorovich multimarginal problems with Coulomb cost }, journal = { Ann. Mat. Pura Appl. }, year = { 2013 }, pages = { 14 }, URL = { http://cvgmt.sns.it/paper/2127/ }, note = { cvgmt preprint} }