@article{M2AN_2015__49_6_1659_0,
     author = {Ekeland, Ivar and Queyranne, Maurice},
     title = {Optimal pits and optimal transportation},
     journal = {ESAIM: Mathematical Modelling and Numerical Analysis },
     pages = {1659--1670},
     publisher = {EDP-Sciences},
     volume = {49},
     number = {6},
     year = {2015},
     doi = {10.1051/m2an/2015026},
     zbl = {1357.37091},
     mrnumber = {3423270},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/m2an/2015026/}
}