Karger, Paul A.; Herbert, Andrew J. (1984). "An Augmented Capability Architecture to Support Lattice Security and Traceability of Access". 1984 IEEE Symposium on Security and Privacy. p. 2. doi:10.1109/SP.1984.10001. ISBN0-8186-0532-4. S2CID14788823.
Karger, Paul A.; Herbert, Andrew J. (1984). "An Augmented Capability Architecture to Support Lattice Security and Traceability of Access". 1984 IEEE Symposium on Security and Privacy. p. 2. doi:10.1109/SP.1984.10001. ISBN0-8186-0532-4. S2CID14788823.