TY  - JOUR
AU  - A. G. Babenko
AU  - Yu. V. Kryakin
TI  - Integral approximation of the characteristic function of an interval and the Jackson inequality in $C(\mathbb T)$
JO  - Trudy Instituta matematiki i mehaniki
PY  - 2009
SP  - 59
EP  - 65
VL  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TIMM_2009_15_1_a4/
LA  - ru
ID  - TIMM_2009_15_1_a4
ER  -