@article{10_4153_CMB_1961_020_5,
     author = {Atkinson, F. V.},
     title = {The {Reversibility} of a {Differentiable} {Mapping}},
     journal = {Canadian mathematical bulletin},
     pages = {161--181},
     year = {1961},
     volume = {4},
     number = {2},
     doi = {10.4153/CMB-1961-020-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1961-020-5/}
}