@article{10_4171_dm_10,
     author = {Markus Rost},
     title = {On the dimension of a composition algebra},
     journal = {Documenta mathematica},
     pages = {209--214},
     year = {1996},
     volume = {1},
     doi = {10.4171/dm/10},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/10/}
}