TY  - GEN
AU  - Denning,Dorothy Elizabeth Robling
TI  - Cryptography and data security
SN  - 0201101505 :
U1  - 001.640289 
PY  - 1982///
CY  - Reading, Mass.
PB  - Addison-Wesley
KW  - Computers
KW  - Access control
KW  - Cryptography
KW  - Data protection
ER  -