@article{NYunpublished,
    author = {Novikov, Dmitry and Yakovenko, Sergei},
    year = {1997},
    month = {08},
    pages = {},
    title = {An Upper Bound for the Number of Intersections Between a Trajectory of a Polynomial Vector Field and an Algebraic Hypersurface in the N-Space},
    journal = {Unpublished draft.},
    date-added = {2023-11-27 17:44:28 +0100}
}

@article{NYunpublished, author = {Novikov, Dmitry and Yakovenko, Sergei}, year = {1997}, month = {08}, pages = {}, title = {An Upper Bound for the Number of Intersections Between a Trajectory of a Polynomial Vector Field and an Algebraic Hypersurface in the N-Space}, journal = {Unpublished draft.}, date-added = {2023-11-27 17:44:28 +0100} }