@article{JRAM_1961__207_150484,
     author = {N. Jacobson},
     title = {Some groups of {Transformations} defined by {Jordan} {Algebras.} {III.} {Groups} of {Type} {E61.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {61--85},
     year = {1961},
     volume = {207},
     zbl = {0142.26501},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1961__207_150484/}
}