%0 Journal Article %A Vasyl Ustimenko %T On algebraic graph theory and non-bijective multivariate maps in cryptography %J Algebra and discrete mathematics %D 2015 %P 152-170 %V 20 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2015_20_1_a11/ %G en %F ADM_2015_20_1_a11