@article{COCV_2013__19_4_976_0,
     author = {Dalibard, Anne-Laure and G\'erard-Varet, David},
     title = {On shape optimization problems involving the fractional laplacian},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {976--1013},
     publisher = {EDP-Sciences},
     volume = {19},
     number = {4},
     year = {2013},
     doi = {10.1051/cocv/2012041},
     mrnumber = {3182677},
     zbl = {1283.49049},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2012041/}
}