TY  - JOUR
AU  - Hájek, Miloslav
TI  - The characteristic polynomial of the feedback connection of dynamical systems
JO  - Kybernetika
PY  - 1971
SP  - 
EP  - 57
VL  - 07
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/KYB_1971__7_1_a4/
LA  - en
ID  - KYB_1971__7_1_a4
ER  -