TY  - JOUR
AU  - E. D. Livshits
TI  - On $n$-Term Approximation with Positive Coefficients
JO  - Matematičeskie zametki
PY  - 2007
SP  - 373
EP  - 382
VL  - 82
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2007_82_3_a4/
LA  - ru
ID  - MZM_2007_82_3_a4
ER  -