@article{10_4007_annals_2010_172_437,
     author = {Miriam Briskin and Nina Roytvarf and Yosef Yomdin},
     title = {Center conditions at infinity for {Abel} differential equations},
     journal = {Annals of mathematics},
     pages = {437--483},
     publisher = {mathdoc},
     volume = {172},
     number = {1},
     year = {2010},
     doi = {10.4007/annals.2010.172.437},
     mrnumber = {2680423},
     zbl = {1216.34025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2010.172.437/}
}