Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1960_132_5_a8, author = {M. B. Kapilevich}, title = {Mixed boundary value problems for singular hyperbolic equations}, journal = {Doklady Akademii Nauk}, pages = {1005--1008}, publisher = {mathdoc}, volume = {132}, number = {5}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_132_5_a8/} }
M. B. Kapilevich. Mixed boundary value problems for singular hyperbolic equations. Doklady Akademii Nauk, Tome 132 (1960) no. 5, pp. 1005-1008. http://geodesic.mathdoc.fr/item/DAN_1960_132_5_a8/