@article{MZ_1920__8_167593,
     author = {W., Blaschke},
     title = {\"Uber affine {Geometrie} {XXVIII_} {Bestimmung} aller {F\"achen,} die von den umschriebenen {Zylindern} l\"angs ebener {Kurven} ber\"uhrt werden},
     journal = {Mathematische Zeitschrift},
     pages = {115--122},
     publisher = {mathdoc},
     volume = {8},
     year = {1920},
     zbl = {47.0661.05},
     url = {http://geodesic.mathdoc.fr/item/MZ_1920__8_167593/}
}