%0 Journal Article %A O. V. Besov %A S. B. Stechkin %T A~description of the moduli of continuity in $L_2$ %J Informatics and Automation %D 1975 %P 23-25 %V 134 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1975_134_a2/ %G ru %F TRSPY_1975_134_a2