@article{MZ_1938__43_168783,
     author = {Dr. H., Zweibr\"ucken, Himmelsbe Unkelbach},
     title = {\"Uber die {Randverzerrung} bei konformer {Abbildung}},
     journal = {Mathematische Zeitschrift},
     pages = {739--742},
     publisher = {mathdoc},
     volume = {43},
     year = {1938},
     zbl = {64.0313.03},
     url = {http://geodesic.mathdoc.fr/item/MZ_1938__43_168783/}
}