%0 Journal Article %A Brengos, Tomasz %T On covariety lattices %J Discussiones Mathematicae. General Algebra and Applications %D 2008 %P 179-191 %V 28 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMGAA_2008_28_2_a3/ %G en %F DMGAA_2008_28_2_a3