TY  - JOUR
AU  - M. R. Langarshoev
TI  - Sharp inequality of Jackson--Stechkin type and widths of functional classes in the space $L_2$
JO  - Eurasian mathematical journal
PY  - 2014
SP  - 122
EP  - 134
VL  - 5
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/EMJ_2014_5_1_a4/
LA  - en
ID  - EMJ_2014_5_1_a4
ER  -