@article{JDM_1921__30_145599,
     author = {Karl Kommerell},
     title = {Affine {Raumtransormationen} und {Affinoren.}},
     journal = {Jahresbericht der Deutschen Mathematiker-Vereinigung},
     pages = {35--55},
     publisher = {mathdoc},
     volume = {30},
     year = {1921},
     zbl = {48.0692.01},
     url = {http://geodesic.mathdoc.fr/item/JDM_1921__30_145599/}
}