%0 Journal Article %A A. V. Egorov %T On the theory of characteristic functions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 2004 %P 567-568 %V 59 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_2004_59_3_a9/ %G en %F RM_2004_59_3_a9