%0 Journal Article %A S. S. Marchenkov %T On the structure of equationally closed classes %J Diskretnaya Matematika %D 2006 %P 18-30 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2006_18_4_a2/ %G ru %F DM_2006_18_4_a2