%0 Journal Article %A Krasniqi, Xhevat Z. %T A note on -convergence of the sine and cosine trigonometric series with semi-convex coefficients. %J International journal of open problems in computer science and mathematics %D 2009 %P 231 %V 2 %N 2 %U http://geodesic.mathdoc.fr/item/IJOPCM_2009__2_2_229240/ %G en %F IJOPCM_2009__2_2_229240