@article{10_4153_CJM_2016_014_5,
     author = {Andrade, Jaime and D\`avila, Nestor and P\'erez-Chavela, Ernesto and Vidal, Claudio},
     title = {Dynamics and {Regularization} of the {Kepler} {Problem} on {Surfaces} of {Constant} {Curvature}},
     journal = {Canadian journal of mathematics},
     pages = {961--991},
     year = {2017},
     volume = {69},
     number = {5},
     doi = {10.4153/CJM-2016-014-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2016-014-5/}
}