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@article{DAN_1964_159_6_a2, author = {A. M. Il'in}, title = {On a class of ultraparabolic equations}, journal = {Doklady Akademii Nauk}, pages = {1214--1217}, publisher = {mathdoc}, volume = {159}, number = {6}, year = {1964}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1964_159_6_a2/} }
A. M. Il'in. On a class of ultraparabolic equations. Doklady Akademii Nauk, Tome 159 (1964) no. 6, pp. 1214-1217. http://geodesic.mathdoc.fr/item/DAN_1964_159_6_a2/