@article{JEMS_2001_3_2_a1,
     author = {Guy Bouchitt\'e and Giuseppe Buttazzo},
     title = {Characterization of optimal shapes and masses through {Monge-Kantorovich} equation},
     journal = {Journal of the European Mathematical Society},
     pages = {139--168},
     publisher = {mathdoc},
     volume = {3},
     number = {2},
     year = {2001},
     doi = {10.1007/s100970000027},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s100970000027/}
}