@article{CMUC_2010__51_1_a6,
     author = {Putten, Roberto van der},
     title = {Uniqueness and non uniqueness of optimal maps in mass transport problem with not strictly convex cost},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {67--83},
     publisher = {mathdoc},
     volume = {51},
     number = {1},
     year = {2010},
     mrnumber = {2666081},
     zbl = {1224.49008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2010__51_1_a6/}
}