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@article{DAN_1960_132_1_a3, author = {L. R. Volevich}, title = {On general systems of differential equations}, journal = {Doklady Akademii Nauk}, pages = {20--23}, publisher = {mathdoc}, volume = {132}, number = {1}, year = {1960}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a3/} }
L. R. Volevich. On general systems of differential equations. Doklady Akademii Nauk, Tome 132 (1960) no. 1, pp. 20-23. http://geodesic.mathdoc.fr/item/DAN_1960_132_1_a3/