@article{IM_1995__121_3_144312,
     author = {Yulii Il'yashenko and Sergei Yakovenko},
     title = {Double exponential estimate for the number of zeros of complete {Abelian} integrals and rational envelopes of linear ordinary differential equations with an irreducible monodromy group.},
     journal = {Inventiones mathematicae},
     pages = {613--650},
     publisher = {mathdoc},
     volume = {121},
     number = {3},
     year = {1995},
     url = {http://geodesic.mathdoc.fr/item/IM_1995__121_3_144312/}
}