%0 Journal Article %A Klotz, Lutz %A Zagorodnyuk, Sergey M. %T Density of Polynomials in the L^2 Space on the Real and the Imaginary Axes and in a Sobolev Space %J Serdica Mathematical Journal %D 2009 %P 147-168 %V 35 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2009_35_2_a2/ %G en %F SMJ2_2009_35_2_a2