%0 Journal Article %A K. Ozeki %A J.A. MacDougall %T The octahedron equation implies the cube equation: an elementary proof. %J Aequationes mathematicae %D 1986 %P 243-246 %V 31 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1986__31_137162/ %F AM2_1986__31_137162