%0 Journal Article %A S. K. Rososhek %T Cryptosystems in automorphism groups of group rings of Abelian groups %J Fundamentalʹnaâ i prikladnaâ matematika %D 2007 %P 157-164 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2007_13_3_a15/ %G ru %F FPM_2007_13_3_a15