%0 Journal Article %A D. V. Gorbachev %T An Extremum Problem for Periodic Functions with Small Support %J Matematičeskie zametki %D 2003 %P 773-778 %V 73 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2003_73_5_a13/ %G ru %F MZM_2003_73_5_a13