@article{COCV_2016__22_4_1097_0,
     author = {Laurent, Camille and L\'eautaud, Matthieu},
     title = {Uniform observability estimates for linear waves},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {1097--1136},
     publisher = {EDP-Sciences},
     volume = {22},
     number = {4},
     year = {2016},
     doi = {10.1051/cocv/2016046},
     mrnumber = {3570496},
     zbl = {1368.35163},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1051/cocv/2016046/}
}