TY  - JOUR
AU  - N. P. Korneichuk
TI  - Best approximation by splines on classes of periodic functions in the metric of $L$
JO  - Matematičeskie zametki
PY  - 1976
SP  - 655
EP  - 664
VL  - 20
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1976_20_5_a3/
LA  - ru
ID  - MZM_1976_20_5_a3
ER  -