%0 Journal Article %A V. A. Popov %A V. Kh. Khristov %T Averaged moduli of smoothness for functions of several variables and function spaces generated by them %J Informatics and Automation %D 1983 %P 136-141 %V 164 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1983_164_a7/ %G ru %F TRSPY_1983_164_a7