@article{EP_1998_3_a4,
     author = {Giuseppe Buttazzo},
     title = {On the existence of minimizing domains for some shape optimization problems},
     journal = {ESAIM. Proceedings},
     pages = {51--64},
     publisher = {mathdoc},
     volume = {3},
     year = {1998},
     doi = {10.1051/proc:1998039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1051/proc:1998039/}
}