%0 Journal Article %A Chajda, Ivan %A Halaš, Radomír %T Varieties satisfying the triangular scheme need not be congruence distributive %J Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica %D 2007 %P 19-24 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUPO_2007__46_1_a1/ %G en %F AUPO_2007__46_1_a1