@article{MAN_1927__96_159167,
     author = {W. S\"uss},
     title = {\"Uber affine {Geometrie} {XL:} {Eifl\"achen} konstanter {Affinbreite}},
     journal = {Mathematische Annalen},
     pages = {251--260},
     publisher = {mathdoc},
     volume = {96},
     year = {1927},
     zbl = {52.0773.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1927__96_159167/}
}