%0 Journal Article %A D. V. Gorbachev %A M. V. Zakharova %T On an extremal problem for periodic functions with small support %J Matematičeskie zametki %D 2006 %P 940-942 %V 80 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2006_80_6_a12/ %G ru %F MZM_2006_80_6_a12