TY  - BOOK
AU  - Houpis, Constantine H. 
TI  - Digital control systems: theory, hardware, software 
SN  - 9780071126373
AV  - TJ223 H68 1992 CIRC 
PY  - 1992///
CY  - New York
PB  - McGraw Hill, 
KW  - Control systems
N1  - Includes index
ER  -