@article{CRMATH_2018__356_6_597_0,
     author = {Wang, Zhiyong and Zhang, Jihui},
     title = {Existence of periodic solutions for a class of damped vibration problems},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {597--612},
     publisher = {Elsevier},
     volume = {356},
     number = {6},
     year = {2018},
     doi = {10.1016/j.crma.2018.04.014},
     language = {en},
     url = {http://archive.numdam.org/articles/10.1016/j.crma.2018.04.014/}
}