%0 Journal Article %A J.A. Hildebrant %T 1986 LSU Semigroup Conference, Kochfest 60. %J Semigroup forum %D 1986 %P 453-456 %V 33 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1986__33_134826/ %F SF_1986__33_134826