@article{00845471, title = {On the solvability of a Darboux type non-characteristic spatial problem for the wave equation.}, journal = {Georgian Mathematical Journal}, volume = {3}, year = {1996}, pages = {53-68}, doi = {10.1007/BF02256798}, zbl = {0844.35062}, language = {en}, url = {http://dml.mathdoc.fr/item/00845471} }
Kharibegashvili, S. On the solvability of a Darboux type non-characteristic spatial problem for the wave equation.. Georgian Mathematical Journal, Tome 3 (1996) pp. 53-68. doi : 10.1007/BF02256798. http://gdmltest.u-ga.fr/item/00845471/