@article{MZ_1984__185_173386,
     author = {Gerhard Janssen and Klaus Alvermann},
     title = {Real and {Complex} {Noncommutative} {Jordan} {Banch} {Algebras.}},
     journal = {Mathematische Zeitschrift},
     pages = {105--114},
     publisher = {mathdoc},
     volume = {185},
     year = {1984},
     zbl = {0513.46044},
     url = {http://geodesic.mathdoc.fr/item/MZ_1984__185_173386/}
}