%0 Journal Article %A V. A. Vitkup %T On some open questions about APN functions %J Prikladnaya Diskretnaya Matematika. Supplement %D 2014 %P 11-13 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDMA_2014_7_a2/ %G ru %F PDMA_2014_7_a2