TY - JOUR AU - Buttazzo, Giuseppe AU - Ruffini, Berardo AU - Velichkov, Bozhidar TI - Shape optimization problems for metric graphs JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2014 SP - 1 EP - 22 VL - 20 IS - 1 PB - EDP-Sciences UR - http://archive.numdam.org/articles/10.1051/cocv/2013050/ DO - 10.1051/cocv/2013050 LA - en ID - COCV_2014__20_1_1_0 ER -