TY  - JOUR
AU  - A. P. Bulanov
TI  - On the order of approximation of convex functions by rational functions
JO  - Izvestiya. Mathematics 
PY  - 1969
SP  - 1067
EP  - 1080
VL  - 3
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1969_3_5_a7/
LA  - en
ID  - IM2_1969_3_5_a7
ER  -