TY  - RPRT
TI  - Structural classification of multi-input nonlinear systems.
AU  - H W Chen
AU  - L D Jacobson
AU  - J P Gaska
PY  - 1990
DO  - 10.1007/bf00202751
UR  - https://pubmed.ncbi.nlm.nih.gov/2223893/
ID  - 2223893
ER  -