TY  - JOUR
AU  - A. A. Ligun
TI  - Some inequalities between best approximations and moduli of continuity in an $L_2$ space
JO  - Matematičeskie zametki
PY  - 1978
SP  - 785
EP  - 792
VL  - 24
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1978_24_6_a6/
LA  - ru
ID  - MZM_1978_24_6_a6
ER  -