1. Retarded Dynamical Systems: Stability and Characteristic Functions;Stépán,1989
2. The role of delay in robot dynamics;Stépán,1986
3. Quasi-periodic oscillations in robot dynamics;Stépán;Nonlinear Dynam.,1995
4. Delay-differential equation models for machine tool chatter;Stépán,1988
5. Asymptotic properties of third order delay differential equations;Dzurina;Nonlinear Anal.,1996