%0 Journal Article %A H.J. Hoehnke %T Skew-monoidal structures on simple rings with several objects. %J Semigroup forum %D 1986 %P 69-88 %V 34 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1986__34_134829/ %F SF_1986__34_134829