TY  - JOUR
AU  - A. M. Sedletskii
TI  - Projection from the spaces $E^p$ on a~convex polygon onto subspaces of periodic functions
JO  - Izvestiya. Mathematics 
PY  - 1989
SP  - 373
EP  - 390
VL  - 33
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1989_33_2_a7/
LA  - en
ID  - IM2_1989_33_2_a7
ER  -