TY  - JOUR
AU  - A. S. Shvedov
TI  - Coconvex approximation of functions of several variables by polynomials
JO  - Sbornik. Mathematics
PY  - 1982
SP  - 515
EP  - 526
VL  - 43
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1982_43_4_a4/
LA  - en
ID  - SM_1982_43_4_a4
ER  -