TY  - JOUR
AU  - V. N. Trofimov
TI  - Linear methods of approximation to continuous periodic functions of two variables
JO  - Doklady Akademii Nauk
PY  - 1961
SP  - 531
EP  - 532
VL  - 137
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1961_137_3_a10/
LA  - ru
ID  - DAN_1961_137_3_a10
ER  -