TY  - JOUR
AU  - M. R. Ismagulov
TI  - Sharp estimates of approximation of periodic continuous functions by regular splines
JO  - Matematičeskie zametki
PY  - 1987
SP  - 9
EP  - 20
VL  - 42
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1987_42_1_a1/
LA  - ru
ID  - MZM_1987_42_1_a1
ER  -