%0 Journal Article %A GaƂuszka, J. %T Bisemilattices with five essentially binary polynomials %J Mathematica slovaca %D 1988 %P 123-132 %V 38 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1988__38_2_a3/ %G en %F MASLO_1988__38_2_a3