TY  - GEN
AU  - Delfs,Hans
AU  - Knebl,Helmut
TI  - Introduction to cryptography: principles and applications 
T2  - Information security and cryptography
SN  - 3540492437
U1  - 003.54 
PY  - 2007///
CY  - [S.l.]
PB  - Springer
ER  -