@article{JDM_1958__60_146437,
     author = {Detlef Laugwitz},
     title = {Eine {Bemerkung} \"uber {Fl\"achenabbildungen.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {93--96},
     publisher = {mathdoc},
     volume = {60},
     year = {1958},
     zbl = {0081.15504},
     url = {http://geodesic.mathdoc.fr/item/JDM_1958__60_146437/}
}