%0 Journal Article %A A.R. Schweitzer %T On the Genesis of the Middle Product in Grassmann's Extensive Algebra %J Mathematische Annalen %D 1910 %P 580-585 %V 69 %I mathdoc %U http://geodesic.mathdoc.fr/item/MAN_1910__69_158480/ %F MAN_1910__69_158480