TY  - JOUR
AU  - K. I. Oskolkov
TI  - On the optimality of the quadrature formula with equidistant nodes on classes of periodic functions
JO  - Doklady Akademii Nauk
PY  - 1979
SP  - 49
EP  - 52
VL  - 249
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1979_249_1_a10/
LA  - ru
ID  - DAN_1979_249_1_a10
ER  -