TY  - JOUR
AU  - B. E. Klots
TI  - Best linear and nonlinear approximations for smooth functions
JO  - Funkcionalʹnyj analiz i ego priloženiâ
PY  - 1978
SP  - 15
EP  - 24
VL  - 12
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FAA_1978_12_1_a1/
LA  - ru
ID  - FAA_1978_12_1_a1
ER  -