@article{RLIN_1997_9_8_3_a2,
     author = {Johnson, Russell and Kamenskii, Mikhail and Nistri, Paolo},
     title = {On the existence of periodic solutions of an hyperbolic equation in a thin domain},
     journal = {Atti della Accademia nazionale dei Lincei. Rendiconti Lincei. Matematica e applicazioni},
     pages = {189--195},
     publisher = {mathdoc},
     volume = {Ser. 9, 8},
     number = {3},
     year = {1997},
     zbl = {0910.35008},
     mrnumber = {1383978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RLIN_1997_9_8_3_a2/}
}