%0 Journal Article %A A. R. Abdulgamidov %T The Haar, Rademacher and Walsh systems of functions of several variables %J Učënye zapiski Kazanskogo universiteta. Seriâ Fiziko-matematičeskie nauki %D 1969 %P 53-59 %V 129 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZKU_1969_129_3_a2/ %G ru %F UZKU_1969_129_3_a2