@article{CMH_1966__41_139308,
     author = {Richard Sacksteder},
     title = {Degeneracy of {Orbits} of {Actions} of {Rm} on a {Manifold.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {1--9},
     publisher = {mathdoc},
     volume = {41},
     year = {1966},
     zbl = {0168.20901},
     url = {http://geodesic.mathdoc.fr/item/CMH_1966__41_139308/}
}