@article{DOCMA_2013__18__a33,
     author = {Chernousov, Vladimir and Elduque, Alberto and Knus, Max-Albert},
     title = {Algebraic groups of type $D_4$, triality, and composition algebras.},
     journal = {Documenta mathematica},
     pages = {413--468},
     publisher = {mathdoc},
     volume = {18},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2013__18__a33/}
}