TY  - JOUR
AU  - S. A. Ivanov
TI  - Best approximations by rational vector-valued functions in Hardy spaces
JO  - Sbornik. Mathematics
PY  - 1988
SP  - 137
EP  - 145
VL  - 61
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1988_61_1_a9/
LA  - en
ID  - SM_1988_61_1_a9
ER  -