TY  - JOUR
AU  - G. Kh. Kirov
AU  - P. D. Proinov
TI  - The approximation of functions of several variables by trigonometric polynomials
JO  - Izvestiâ vysših učebnyh zavedenij. Matematika
PY  - 1977
SP  - 50
EP  - 54
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IVM_1977_6_a5/
LA  - ru
ID  - IVM_1977_6_a5
ER  -