%0 Journal Article %A D. K. Ugulava %T Approximation of functions on an $m$-dimensional sphere by Ces\`aro means of Fourier--Laplace series %J Matematičeskie zametki %D 1971 %P 343-353 %V 9 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1971_9_3_a12/ %G ru %F MZM_1971_9_3_a12