TY  - BOOK
AU  - Andreassen,Karl
AU  - Marshak,Kathryn Gollin
TI  - Computer cryptology : beyond decoder rings / 
SN  - 0131661337
U1  - 652.80285 
PY  - 1988///
CY  - New Jersey
PB  - Prentice-Hall, 
KW  - Management
KW  - Cryptography
KW  - Cipher systems
KW  - Computer security
KW  - Computers
ER  -