@article{00733306,
title = {About the existence and uniqueness theorem for hyperbolic equation.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {18},
year = {1995},
pages = {141-146},
doi = {10.1155/S0161171295000184},
zbl = {0819.35090},
language = {en},
url = {http://dml.mathdoc.fr/item/00733306}
}
Khalifa, M.E. About the existence and uniqueness theorem for hyperbolic equation.. International Journal of Mathematics and Mathematical Sciences, Tome 18 (1995) pp. 141-146. doi : 10.1155/S0161171295000184. http://gdmltest.u-ga.fr/item/00733306/