@article{DOCMA_1996__1__a17,
     author = {Hoffmann, Detlev W.},
     title = {Twisted {Pfister} forms},
     journal = {Documenta mathematica},
     pages = {67--102},
     publisher = {mathdoc},
     volume = {1},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_1996__1__a17/}
}