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@article{DAN_1988_303_1_a1, author = {D. Yu. Grigor'ev}, title = {Complexity of the factorization of a linear ordinary differential}, journal = {Doklady Akademii Nauk}, pages = {16--20}, publisher = {mathdoc}, volume = {303}, number = {1}, year = {1988}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a1/} }
D. Yu. Grigor'ev. Complexity of the factorization of a linear ordinary differential. Doklady Akademii Nauk, Tome 303 (1988) no. 1, pp. 16-20. http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a1/