%0 Journal Article %A Zapryanova, T. %T A Characterization Theorem for the K-functional Associated with the Algebraic Version of Trigonometric Jackson Integrals %J Serdica Mathematical Journal %D 2006 %P 303-322 %V 32 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/SMJ2_2006_32_4_a2/ %G en %F SMJ2_2006_32_4_a2