%0 Journal Article %A Černák, Štefan %A Demko, Milan %T Lexico extension and a cut completion of a half l-group %J Discussiones Mathematicae. General Algebra and Applications %D 2002 %P 141-152 %V 22 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGAA_2002_22_2_a3/ %G en %F DMGAA_2002_22_2_a3