@article{MZ_1982__180_173181,
     author = {Thomas Bier and Ulrich Schwardmann},
     title = {R\"aume normierter {Bilinearformen} und {Cliffordstrukturen.}},
     journal = {Mathematische Zeitschrift},
     pages = {203--216},
     publisher = {mathdoc},
     volume = {180},
     year = {1982},
     zbl = {0471.55009},
     url = {http://geodesic.mathdoc.fr/item/MZ_1982__180_173181/}
}