TY  - JOUR
AU  - T. O. Kononovich
TI  - The lower bounds estimate of the best approximation with a trigonometric polynomials of a summarized functions of two variables
JO  - Žurnal matematičeskoj fiziki, analiza, geometrii
PY  - 2002
SP  - 478
EP  - 486
VL  - 9
IS  - 3
UR  - http://geodesic.mathdoc.fr/item/JMAG_2002_9_3_a15/
LA  - ru
ID  - JMAG_2002_9_3_a15
ER  -