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@article{DAN_1964_154_6_a5, author = {A. I. Perov}, title = {On multi-dimensional differential equations with constant coefficients}, journal = {Doklady Akademii Nauk}, pages = {1266--1269}, publisher = {mathdoc}, volume = {154}, number = {6}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_154_6_a5/} }
A. I. Perov. On multi-dimensional differential equations with constant coefficients. Doklady Akademii Nauk, Tome 154 (1964) no. 6, pp. 1266-1269. http://geodesic.mathdoc.fr/item/DAN_1964_154_6_a5/