@article{M2AN_2002__36_2_223_0,
     author = {Henrot, Antoine and Villemin, Gr\'egory},
     title = {An optimum design problem in magnetostatics},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {223--239},
     publisher = {EDP-Sciences},
     volume = {36},
     number = {2},
     year = {2002},
     doi = {10.1051/m2an:2002012},
     mrnumber = {1906816},
     zbl = {1054.49030},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/m2an:2002012/}
}