@article{GDZPPN002425858,
title = {Local Classification of Quotients of Smooth Manifolds by Discontinuous Groups.},
journal = {Mathematische Zeitschrift},
volume = {180},
year = {1982},
pages = {43-58},
zbl = {0458.57029},
url = {http://dml.mathdoc.fr/item/GDZPPN002425858}
}
Strub, Rainer. Local Classification of Quotients of Smooth Manifolds by Discontinuous Groups.. Mathematische Zeitschrift, Tome 180 (1982) pp. 43-58. http://gdmltest.u-ga.fr/item/GDZPPN002425858/