%0 Journal Article %A Chernousov, Vladimir %A Elduque, Alberto %A Knus, Max-Albert %T Algebraic groups of type $D_4$, triality, and composition algebras. %J Documenta mathematica %D 2013 %P 413-468 %V 18 %I mathdoc %U http://geodesic.mathdoc.fr/item/DOCMA_2013__18__a33/ %G en %F DOCMA_2013__18__a33