@Misc{ ButChaDeP16, author = { Buttazzo, Giuseppe and Champion, Thierry and De Pascale, Luigi }, title = { Continuity and estimates for multimarginal optimal transportation problems with singular costs }, journal = { }, year = { 2016 }, pages = { }, URL = { http://cvgmt.sns.it/paper/3141/ }, note = { cvgmt preprint} }