%0 Journal Article %A V. A. Anjin %T Content protection with bitstream watermarking at decryption stage %J Prikladnaya Diskretnaya Matematika. Supplement %D 2014 %P 73-74 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDMA_2014_7_a31/ %G ru %F PDMA_2014_7_a31