@article{MZ_1969__109_171120,
     author = {Karl-Heinz Helwig},
     title = {Halbeinfache reelle {Jordan-Algebren.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--28},
     publisher = {mathdoc},
     volume = {109},
     year = {1969},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MZ_1969__109_171120/}
}