TY  - JOUR
AU  - V. N. Temlyakov
TI  - On estimates of the best bilinear approximations of periodic functions and singular numbers of integral operators
JO  - Informatics and Automation
PY  - 1987
SP  - 213
EP  - 214
VL  - 180
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a130/
LA  - ru
ID  - TRSPY_1987_180_a130
ER  -