%0 Journal Article %A A. V. Mikhailovich %T Closed classes of the three-valued logic generated by systems containing symmetric functions %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 2012 %P 58-62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_2012_1_a9/ %G ru %F VMUMM_2012_1_a9