%0 Journal Article %A Yu. V. Netrusov %T Sets of irregularity of functions from spaces of Besov and Lizorkin--Triebel type %J Informatics and Automation %D 1989 %P 162-177 %V 187 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1989_187_a10/ %G ru %F TRSPY_1989_187_a10