@article{00706790,
title = {Some boundary value problems for systems of linear partial differential equations of hyperbolic type.},
journal = {Memoirs on Differential Equations and Mathematical Physics},
volume = {1},
year = {1994},
zbl = {0819.35003},
language = {en},
url = {http://dml.mathdoc.fr/item/00706790}
}
Kiguradze, Tariel. Some boundary value problems for systems of linear partial differential equations of hyperbolic type.. Memoirs on Differential Equations and Mathematical Physics, Tome 1 (1994) . http://gdmltest.u-ga.fr/item/00706790/