@article{PMIHES_1974__43__245_0,
     author = {Chatelet, Gilles and Rosenberg, Harold},
     title = {Manifolds which admit $\mathbf {R}^n$ actions},
     journal = {Publications Math\'ematiques de l'IH\'ES},
     pages = {245--260},
     publisher = {Institut des Hautes \'Etudes Scientifiques},
     volume = {43},
     year = {1974},
     mrnumber = {346808},
     zbl = {0305.57031},
     language = {en},
     url = {http://archive.numdam.org/item/PMIHES_1974__43__245_0/}
}