@article{MZ_1982__179_173126,
     author = {Rainer Strub},
     title = {Local {Classification}  of {Quotients} of {Smooth} {Manifolds} by {Discontinuous} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {43--58},
     year = {1982},
     volume = {179},
     zbl = {0458.57029},
     url = {http://geodesic.mathdoc.fr/item/MZ_1982__179_173126/}
}