TY - JOUR AU - Leugering, Gunter AU - Gugat, Martin TI - $L^\infty $-norm minimal control of the wave equation : on the weakness of the bang-bang principle JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2008 SP - 254 EP - 283 VL - 14 IS - 2 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv:2007044/ DO - 10.1051/cocv:2007044 LA - en ID - COCV_2008__14_2_254_0 ER -