@article{MZ_1977__156_172576,
     author = {Christian Pommerenke},
     title = {On the {Green's} {Fundamental} {Domain.}},
     journal = {Mathematische Zeitschrift},
     pages = {157--164},
     publisher = {mathdoc},
     volume = {156},
     year = {1977},
     zbl = {0346.30016},
     url = {http://geodesic.mathdoc.fr/item/MZ_1977__156_172576/}
}