%0 Journal Article %A Kh. M. Shadimetov %A A. K. Boltaev %A R. I. Parovik %T Construction of optimal interpolation formula exact for trigonometric functions by Sobolev's method %J Vestnik KRAUNC. Fiziko-matematičeskie nauki %D 2022 %P 131-146 %V 38 %N 1 %U http://geodesic.mathdoc.fr/item/VKAM_2022_38_1_a7/ %G en %F VKAM_2022_38_1_a7