%0 Journal Article %A S.W. Margolis %A J.H. Dinitz %T Translational hulls and block designs. %J Semigroup forum %D 1983 %P 247-264 %V 27 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1983__27_134626/ %F SF_1983__27_134626