TY  - RPRT
TI  - Policy Machine: Features, Architecture, and Specification 
AU  - Ferraiolo, David F.
AU  - Gavrila, Serban I.
AU  - Jansen, Wayne
AU  - Stutzman, Paul E.
PY  - 2015
PB  - National Institute of Standards and Technology
SN  - NIST IR 7987r1
DO  - 10.6028/NIST.IR.7987r1
ER  -