@article{MZ_1919__4_167520,
     author = {H., Bademacher},
     title = {\"Uber streckentreue und winkeltreue {Abbildung}},
     journal = {Mathematische Zeitschrift},
     pages = {131--138},
     publisher = {mathdoc},
     volume = {4},
     year = {1919},
     zbl = {47.0268.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1919__4_167520/}
}