%0 Journal Article %A P. N. Devyanin %T Transformation rules for states in base role DP-model of access control and information flows in operating systems %J Prikladnaâ diskretnaâ matematika %D 2011 %P 78-95 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PDM_2011_1_a5/ %G ru %F PDM_2011_1_a5