@article{PORMA_1994__51_3_47346,
     author = {Lopes Frota, C{\'\i}cero},
     title = {Non local solutions of a nonlinear hyperbolic partial differential equation.},
     journal = {Portugaliae mathematica},
     pages = {455--473},
     publisher = {mathdoc},
     volume = {51},
     number = {3},
     year = {1994},
     zbl = {0831.35110},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1994__51_3_47346/}
}