TY - JOUR AU - Kh. M. Shadimetov AU - A. K. Boltaev AU - R. I. Parovik TI - Construction of optimal interpolation formula exact for trigonometric functions by Sobolev's method JO - Vestnik KRAUNC. Fiziko-matematičeskie nauki PY - 2022 SP - 131 EP - 146 VL - 38 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/VKAM_2022_38_1_a7/ LA - en ID - VKAM_2022_38_1_a7 ER -