TY  - JOUR
AU  - L. D. Ivanov
TI  - On approximation of $l$-smooth functions by rational functions in the integral metric
JO  - Izvestiya. Mathematics 
PY  - 1972
SP  - 235
EP  - 240
VL  - 6
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1972_6_1_a6/
LA  - en
ID  - IM2_1972_6_1_a6
ER  -