TY  - JOUR
AU  - Yu. N. Subbotin
TI  - Diameter of class $W^rL$ in $L(0,2\pi)$ and spline function approximation
JO  - Matematičeskie zametki
PY  - 1970
SP  - 43
EP  - 52
VL  - 7
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1970_7_1_a4/
LA  - ru
ID  - MZM_1970_7_1_a4
ER  -