@article{MZ_1940__46_168919,
     author = {G., v., v. Sz. Nagy},
     title = {\"Uber die {Eigenschaften} der beschr\"ankten ebenen {Kurven} ohne {Tangentensingularit\"at}},
     journal = {Mathematische Zeitschrift},
     pages = {605--626},
     publisher = {mathdoc},
     volume = {46},
     year = {1940},
     zbl = {66.0976.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1940__46_168919/}
}