%0 Journal Article %A Yu. S. Volkov %T Nonnegative Solutions to Systems with Symmetric Circulant Matrix %J Matematičeskie zametki %D 2001 %P 170-180 %V 70 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2001_70_2_a1/ %G ru %F MZM_2001_70_2_a1