%0 Journal Article %A S. S. Marchenkov %T Atoms of the lattice of positively closed classes of three-valued logic %J Diskretnaya Matematika %D 2012 %P 79-91 %V 24 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DM_2012_24_2_a6/ %G ru %F DM_2012_24_2_a6