TY  - JOUR
AU  - S. O. Sinanyan
TI  - Approximation by polynomials in the mean with respect to area
JO  - Sbornik. Mathematics
PY  - 1970
SP  - 411
EP  - 421
VL  - 11
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1970_11_3_a7/
LA  - en
ID  - SM_1970_11_3_a7
ER  -