%0 Journal Article %A Brancolini, Alessio %A Buttazzo, Giuseppe %T Optimal networks for mass transportation problems %J ESAIM: Control, Optimisation and Calculus of Variations %D 2005 %P 88-101 %V 11 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv:2004032/ %R 10.1051/cocv:2004032 %G en %F COCV_2005__11_1_88_0