TY  - JOUR
AU  - B. S. Kashin
TI  - Lower Bounds for $n$-Term Approximations of Plane Convex Sets and Related Topics
JO  - Matematičeskie zametki
PY  - 2002
SP  - 509
EP  - 515
VL  - 72
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2002_72_4_a3/
LA  - ru
ID  - MZM_2002_72_4_a3
ER  -