TY  - JOUR
AU  - D. N. Kolegov
TI  - Hierarchical role-based access control
JO  - Prikladnaya Diskretnaya Matematika. Supplement
PY  - 2012
SP  - 69
EP  - 71
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PDMA_2012_5_a35/
LA  - ru
ID  - PDMA_2012_5_a35
ER  -