@article{MZ_1933__36_168400,
     author = {Behrend. F.},
     title = {\"Uber einen {Satz} von {Herrn} {Jarnik}},
     journal = {Mathematische Zeitschrift},
     pages = {293--297},
     publisher = {mathdoc},
     volume = {36},
     year = {1933},
     url = {http://geodesic.mathdoc.fr/item/MZ_1933__36_168400/}
}