%0 Journal Article %A P. A. Pautov %T The problem of authentication in the multi-tier applications %J Prikladnaâ diskretnaâ matematika %D 2008 %P 87-90 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2008_2_a18/ %G ru %F PDM_2008_2_a18