TY  - JOUR
AU  - V. N. Gabushin
TI  - Best approximations of functionals on certain sets
JO  - Matematičeskie zametki
PY  - 1970
SP  - 551
EP  - 562
VL  - 8
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1970_8_5_a2/
LA  - ru
ID  - MZM_1970_8_5_a2
ER  -