@article{00645197,
title = {On the correct formulation of a multidimensional problem for strictly hyperbolic equations of higher order.},
journal = {Georgian Mathematical Journal},
volume = {1},
year = {1994},
pages = {141-150},
doi = {10.1007/BF02254728},
zbl = {0819.35091},
language = {en},
url = {http://dml.mathdoc.fr/item/00645197}
}
Kharibegashvili, S. On the correct formulation of a multidimensional problem for strictly hyperbolic equations of higher order.. Georgian Mathematical Journal, Tome 1 (1994) pp. 141-150. doi : 10.1007/BF02254728. http://gdmltest.u-ga.fr/item/00645197/