@article{AIHPC_1989__6_3_209_0,
     author = {Stedry, Milan},
     title = {Small time periodic solutions of fully nonlinear telegraph equations in more spatial dimensions},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {209--232},
     publisher = {Gauthier-Villars},
     volume = {6},
     number = {3},
     year = {1989},
     mrnumber = {995505},
     zbl = {0679.34038},
     language = {en},
     url = {http://www.numdam.org/item/AIHPC_1989__6_3_209_0/}
}