TY  - BOOK
AU  - Sinkov Abraham
TI  - Elemetary cryptanalysis : A Mathematical approach
T2  - Mathematical Association of America Anneli Lax New Mathematical Library. 22
U1  - D6,8(B),942, P9 
PY  - 2009///
CY  - America
PB  - Mathematical Association of America    
KW  - Mathematics
ER  -