%0 Journal Article %A Ĺ ulka, Robert %T Remark on partially ordered sets, universal algebras and semigroups %J Mathematica slovaca %D 1979 %P 131-139 %V 29 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1979__29_2_a3/ %G en %F MASLO_1979__29_2_a3