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@article{IM_1966__1_141825, author = {K.H. HELLWIG}, title = {Eine {Verallgemeinerung} der formalreellen {Jordan-Algebren.}}, journal = {Inventiones mathematicae}, pages = {18--35}, publisher = {mathdoc}, volume = {1}, year = {1966}, url = {http://geodesic.mathdoc.fr/item/IM_1966__1_141825/} }
K.H. HELLWIG. Eine Verallgemeinerung der formalreellen Jordan-Algebren.. Inventiones mathematicae, Tome 1 (1966), pp. 18-35. http://geodesic.mathdoc.fr/item/IM_1966__1_141825/