TY  - RPRT
TI  - Necessary and sufficient conditions for stability for n-input, n-output convolution feedback systems with a finite number of unstable poles.
AU  - Callier, F. M.
AU  - Desoer, C. A.
PY  - 1973
UR  - https://ntrs.nasa.gov/citations/19730045707
ID  - 19730045707
ER  -