%0 Journal Article %A V. N. Rusak %A I. V. Rybachenko %T The Properties of Functions and Approximation by Summation Rational Operators on the Real Axis %J Matematičeskie zametki %D 2004 %P 111-118 %V 76 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2004_76_1_a10/ %G ru %F MZM_2004_76_1_a10