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@article{DAN_1985_285_3_a8, author = {N. Yu. Kapustin}, title = {Three boundary value problems for a hyperbolic equation in a}, journal = {Doklady Akademii Nauk}, pages = {555--558}, publisher = {mathdoc}, volume = {285}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_3_a8/} }
N. Yu. Kapustin. Three boundary value problems for a hyperbolic equation in a. Doklady Akademii Nauk, Tome 285 (1985) no. 3, pp. 555-558. http://geodesic.mathdoc.fr/item/DAN_1985_285_3_a8/