@article{00969326,
title = {Goursat and Darboux type problems for linear hyperbolic partial differential equations and systems.},
journal = {Memoirs on Differential Equations and Mathematical Physics},
volume = {6},
year = {1995},
zbl = {0870.35001},
language = {en},
url = {http://dml.mathdoc.fr/item/00969326}
}
Kharibegashvili, S. Goursat and Darboux type problems for linear hyperbolic partial differential equations and systems.. Memoirs on Differential Equations and Mathematical Physics, Tome 6 (1995) . http://gdmltest.u-ga.fr/item/00969326/