@article{COCV_2012__18_3_889_0,
     author = {Guo, Bao-Zhu and Zhang, Guo-Dong},
     title = {On {Spectrum} and {Riesz} basis property for one-dimensional wave equation with {Boltzmann} damping},
     journal = {ESAIM: Control, Optimisation and Calculus of Variations},
     pages = {889--913},
     publisher = {EDP-Sciences},
     volume = {18},
     number = {3},
     year = {2012},
     doi = {10.1051/cocv/2011186},
     mrnumber = {3041669},
     zbl = {1259.35132},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/cocv/2011186/}
}