TY  - JOUR
AU  - P. A. Borodin
TI  - Approximation by sums of shifts of a~single function on the circle
JO  - Izvestiya. Mathematics 
PY  - 2017
SP  - 1080
EP  - 1094
VL  - 81
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2017_81_6_a2/
LA  - en
ID  - IM2_2017_81_6_a2
ER  -