@article{MZ_1981__177_173082,
     author = {Holger P. Petersson},
     title = {On {Linear} and {Quadratic} {Jordan} {Division} {Algebras.}},
     journal = {Mathematische Zeitschrift},
     pages = {541--548},
     year = {1981},
     volume = {177},
     zbl = {0461.17006},
     url = {http://geodesic.mathdoc.fr/item/MZ_1981__177_173082/}
}