%0 Journal Article %A M. M. Glukhov %T Investigation of residue rings of biquadratic extensions of an integer number ring and public key schemes %J Trudy po diskretnoj matematike %D 2003 %P 31-55 %V 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/TDM_2003_7_a2/ %G ru %F TDM_2003_7_a2