%0 Journal Article %A Vasiliy A. Ustimenko %T Maximality of affine group, and hidden graph cryptosystems %J Algebra and discrete mathematics %D 2005 %P 133-150 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2005_1_a11/ %G en %F ADM_2005_1_a11