Costanzo Manes
- State Observers for Nonlinear Systems with Smooth / Bounded Input. KYBERNETIKA 35 (1999) n.4, 393-413.
- Local Asymptotic Stability for Nonlinear State Feedback Delay Systems. KYBERNETIKA 36 (2000) n.1, 31-42.
- An Asymptotic State Observer for a Class of Nonlinear Delay Systems. KYBERNETIKA 37 (2001) n.4, 459-478.