@article{MAN_1938__115_159955,
     author = {H. Kneser},
     title = {Bemerkung \"uber die gemischten {Inhalte} in vier {Dimensionen}},
     journal = {Mathematische Annalen},
     pages = {132--135},
     publisher = {mathdoc},
     volume = {115},
     year = {1938},
     zbl = {63.0673.03},
     url = {http://geodesic.mathdoc.fr/item/MAN_1938__115_159955/}
}