TY  - BOOK
AU  - Figueiredo ,J .P.
TI  - NonLinear Feedback control systems : An operator theory approach
SN  - 0122086309
AV  - TJ 216  .D44 
PY  - 1993///
CY  - San Diego
PB  -   Academic press iNC
KW  - Feedback  Control Systems
ER  -