@article{COCV_2017__23_1_13_0,
     author = {Gugat, Martin and Leugering, G\"unter},
     title = {Time {Delay} in {Optimal} {Control} {Loops} for {Wave} {Equations}},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {13--37},
     publisher = {EDP-Sciences},
     volume = {23},
     number = {1},
     year = {2017},
     doi = {10.1051/cocv/2015038},
     mrnumber = {3601014},
     zbl = {1356.49005},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2015038/}
}