TY  - JOUR
AU  - A. Olevskiǐ
AU  - A. Ulanovskiǐ
TI  - Approximation of discrete functions and size of spectrum
JO  - Algebra i analiz
PY  - 2009
SP  - 227
EP  - 240
VL  - 21
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AA_2009_21_6_a7/
LA  - en
ID  - AA_2009_21_6_a7
ER  -