@article{1200692528,
author = {Ikawa, Mitsuru},
title = {A mixed problem for hyperbolic equations of second order with non-homogeneous Neumann type boundary condition},
journal = {Osaka J. Math.},
volume = {6},
number = {1},
year = {1969},
pages = { 339-374},
language = {en},
url = {http://dml.mathdoc.fr/item/1200692528}
}
Ikawa, Mitsuru. A mixed problem for hyperbolic equations of second order with non-homogeneous Neumann type boundary condition. Osaka J. Math., Tome 6 (1969) no. 1, pp. 339-374. http://gdmltest.u-ga.fr/item/1200692528/