%0 Journal Article %A Vesna Vučković %T Digital watermark %J Review of the National Center for Digitization %D 2004 %P 59 - 62 %V 5 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/NCD_2004_5_1_a7/ %F NCD_2004_5_1_a7