%0 Journal Article %A G. P. Agibalov %T Watermarking ciphers %J Prikladnaya Diskretnaya Matematika. Supplement %D 2015 %P 54-59 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDMA_2015_8_a19/ %G ru %F PDMA_2015_8_a19