@article{MAN_1967__170_161532,
     author = {R.C. GUNNING},
     title = {Special {Coordinate} {Coverings} of {Riemann} {Surfaces.}},
     journal = {Mathematische Annalen},
     pages = {67--86},
     publisher = {mathdoc},
     volume = {170},
     year = {1967},
     zbl = {0144.33501},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__170_161532/}
}