@article{MOMA_1973__77_177624,
     author = {Heinrich Brauner},
     title = {Eine geometrische {Kennzeichnung} linearer {Abbildungen.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {10--20},
     publisher = {mathdoc},
     volume = {77},
     year = {1973},
     zbl = {0256.50013},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1973__77_177624/}
}