%0 Journal Article %A V. B. Alekseev %T On Some Closed Classes of Self-dual Partial Many-valued Functions %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 2009 %P 16-24 %V 151 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZKU_2009_151_2_a2/ %G ru %F UZKU_2009_151_2_a2