@article{MZ_1923__17_167732,
     author = {E., Salkowski},
     title = {\"Uber affine {Geometrie:} {Zur} {Theorie} der {Affingesimsfl\"achen}},
     journal = {Mathematische Zeitschrift},
     pages = {144--148},
     publisher = {mathdoc},
     volume = {17},
     year = {1923},
     zbl = {49.0528.01},
     url = {http://geodesic.mathdoc.fr/item/MZ_1923__17_167732/}
}