%0 Journal Article %A A. G. Chentsov %T Filters and ultrafilters in the constructions of attraction sets %J Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹûternye nauki %D 2011 %P 113-142 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/VUU_2011_1_a11/ %G ru %F VUU_2011_1_a11