@article{MZ_1956__64_169554,
     author = {Detlef Laugwitz},
     title = {\"Uber einen {Abbildungssatz} von {B.} {Sz.-Nagy.}},
     journal = {Mathematische Zeitschrift},
     pages = {72--78},
     publisher = {mathdoc},
     volume = {64},
     year = {1956},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1956__64_169554/}
}