%0 Journal Article %A A. A. Zhensykbaev %T Spline interpolation and best approximation by trigonometric polynomials %J Matematičeskie zametki %D 1979 %P 355-366 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1979_26_3_a4/ %G ru %F MZM_1979_26_3_a4