%0 Journal Article %A Giuseppe Buttazzo %T On the existence of minimizing domains for some shape optimization problems %J ESAIM. Proceedings %D 1998 %P 51-64 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1051/proc:1998039/ %R 10.1051/proc:1998039 %G en %F EP_1998_3_a4