@article{MAN_1967__171_161549,
     author = {H.P. LORENZEN},
     title = {Mutationsinvariante {Unteralgebren} von {Jordan-Algebren.}},
     journal = {Mathematische Annalen},
     pages = {54--60},
     publisher = {mathdoc},
     volume = {171},
     year = {1967},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__171_161549/}
}