%0 Journal Article %A Z. Goseki %T On p-irreducible S-subsets of an S-set. %J Semigroup forum %D 1993 %P 215-222 %V 47 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1993__47_2_135271/ %F SF_1993__47_2_135271