TY  - BOOK
AU  - Graf,Rudolf F.
AU  - Sheets,William
TI  - Video scrambling & descrambling for satellite & cable TV
SN  - 0672224992
U1  - TK/6677 
PY  - 1992///
CY  - Indiana, USA
PB  - SAMS
KW  - Cable television -- Scrambling systems.
KW  - Direct broadcast satellite television -- Scrambling systems.
ER  -