%0 Journal Article %A F.R. McMorris %A C.S. Johnson %T Abian's order relation for semigroups. %J Semigroup forum %D 1978 %P 147-152 %V 16 %I mathdoc %U http://geodesic.mathdoc.fr/item/SF_1978__16_134284/ %F SF_1978__16_134284