TY  - JOUR
AU  - A. D. Izaak
TI  - Widths of H\"older--Nikol'skij classes and finite-dimensional subsets in spaces with mixed norm
JO  - Matematičeskie zametki
PY  - 1996
SP  - 459
EP  - 461
VL  - 59
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1996_59_3_a17/
LA  - ru
ID  - MZM_1996_59_3_a17
ER  -