TY  - JOUR
AU  - S. V. Pereverzev
TI  - Approximation numbers and the eigenvalue problem for integral operators
JO  - Informatics and Automation
PY  - 1987
SP  - 175
EP  - 176
VL  - 180
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a104/
LA  - ru
ID  - TRSPY_1987_180_a104
ER  -