@article{COCV_2008__14_2_254_0,
     author = {Leugering, Gunter and Gugat, Martin},
     title = {$L^\infty $-norm minimal control of the wave equation : on the weakness of the bang-bang principle},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {254--283},
     publisher = {EDP-Sciences},
     volume = {14},
     number = {2},
     year = {2008},
     doi = {10.1051/cocv:2007044},
     mrnumber = {2394510},
     zbl = {1133.49006},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv:2007044/}
}