@article{CRMATH_2010__348_11-12_613_0,
     author = {Bianchini, Stefano and Caravenna, Laura},
     title = {On optimality of \protect\emph{c}-cyclically monotone transference plans},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {613--618},
     publisher = {Elsevier},
     volume = {348},
     number = {11-12},
     year = {2010},
     doi = {10.1016/j.crma.2010.03.022},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2010.03.022/}
}