TY  - JOUR
AU  - Loi, Nguyen
TI  - On periodic oscillations for a class of feedback control systems in Hilbert spaces
JO  - Discussiones Mathematicae. Differential Inclusions, Control and Optimization
PY  - 2013
SP  - 205
EP  - 219
VL  - 33
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DMDICO_2013_33_2_a5/
LA  - en
ID  - DMDICO_2013_33_2_a5
ER  -