| On the existence of polynomial first integrals of quadratic homogeneous systems of ordinary differential equations | Journal of physics. A, mathematical and general |  | | 2001 | 587 | 470 |
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| The meromorphic non-integrability of the three-body problem | Journal für die reine und angewandte Mathematik | | | 2001 | 686 | 1,771 |
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| On the algebraic invariant curves of plane polynomial differential systems | Journal of physics. A, mathematical and general | | | 2001 | 664 | 2,106 |
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| Sur l'absence d'une intégrale première méromorphe supplémentaire dans le problème plan des trois corps. On the absence of an additional meromorphic first integral in the planar three-body problem | Comptes rendus. Mathématique |  | | 2001 | 557 | 0 |
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