TY  - JOUR
AU  - G. G. Islamov
TI  - Two-sided estimates for $s$-numbers of integral operators that increase smoothness
JO  - Differencialʹnye uravneniâ
PY  - 1988
SP  - 353
EP  - 356
VL  - 24
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1988_24_2_a25/
LA  - ru
ID  - DE_1988_24_2_a25
ER  -