1. Theory of state covariance assignment for discrete systems;Collins;IEEE Trans Automat Control,1987
2. Covariance control theory;Hotz;Int J Control,1987
3. Time-delay systems: analysis, optimization and applications;Malek-Zavarei,1987
4. Analysis and synthesis of time-delay systems;Gorecki,1989
5. Retard dynamical systems: stability and characteristic functions;Stepan,1989