TY  - GEN
AU  - Phillips, Charles L
AU  - H Troy, Nagle
TI  - Digital control system analysis / 3rd ed
SN  - 0-13-317729-7
U1  - 621.39:681.5 
PY  - 1995///
CY  - New York
PB  - Prentice Hall 
KW  - Digital control system
KW  - Control system
KW  - 621.39:681.5
ER  -