N. Kalouptsidis and D. Elliott,

*"Accessibility properties of smooth nonlinear control systems"*, in Geometric Control Theory, edited by C. Martin and R. Hermann, 1976,pp. 439-446.J. Tsinias and N. Kalouptsidis,

*"Transforming a controllable multi-input system to a single input system by feedback"*, Systems and Control Letters, vol.1, No. 3, 1981, pp.173-178.N. Kalouptsidis and D. Elliott,

*"Stability of orbits of control systems"*, Mathematical System Theory, vol. 15, 1982, pp. 323-342.J. Tsinias and N. Kalouptsidis,

*"Output feedback design and controllable cascade connections of nonlinear systems"*, Systems and Control Letters, vol. 2, No. 4, 1982, pp. 230-236.N. Kalouptsidis,

*"Prolongation and Lyapunov functions in control systems"*, Mathematical System Theory, vol. 16, 1983, pp. 233-249.J.Tsinias and N. Kalouptsidis,

*"Invertibility of analytic single input nonlinear control systems"*, IEEE Trans. on AC vol. 20, Sept. 1983 pp.931-933.N. Kalouptsidis and J. Tsinias,

*"Stability improvement of nonlinear systems by feedback"*, IEEE Trans. on AC, vol. 29, 1984, pp. 364-367.N. Kalouptsidis, G. Carayannis and D. Manolakis,

*"A fast covariance type algorithm for sequential least squares estimation"*, IEEE Trans. on AC, Sept. 1984, pp. 752-755.C. Gounaridis-Minaidis and N. Kalouptsidis,

*"Stability of discrete time bilinear systems with constant inputs"*, Inter. Journal of Control, vol. 43, No. 2, 1986, pp. 663-669.J. Tsinias and N. Kalouptsidis,

*"Controllable cascade connections of nonlinear systems"*, Journal of Nonlinear analysis, Theory, Methods and Applications, vol. 11, No. 10, 1987, pp. 1229-1244.A. Bacciotti and N. Kalouptsidis,

*"Topological dynamics of control systems: stability and attraction"*, Nonlinear Analysis, Theory, Methods and Applications, vol. 10, No. 6, pp. 547-565.J. Tsinias and N. Kalouptsidis,

*"Prolongations and stability analysis via Lyapunov functions of dynamical polysystems"*, Mathematical System Theory, vol. 20, 1987, pp. 215-233.J. Tsinias, N. Kalouptsidis and A. Bacciotti,

*"Lyapunov functions and stability of dynamical systems"*, Mathematical System Theory, vol. 19 1987, pp. 333-354.J. Tsinias, S. Kotsios and N. Kalouptsidis,

*"Topological Dynamics of discrete time systems"*, Math. Theory of Networks and Systems, North Holland, 1989.J. Tsinias and N. Kalouptsidis,

*"Output feedback stabilization"*, IEEE Trans. Autom. Control, vol. 35, no. 8, pp. 951-954, Aug. 1990.J. Tsinias and N. Kalouptsidis,

*"Output feedback stabilization of discrete time control systems"*, IMA, pp. 13-25, Nov. 1990S. Kotsios and N. Kalouptsidis,

*"The model matching problem for a certain class of nonlinear systems"*, International Journal of Control, vol. 57, no. 4, pp. 881-919, 1993.S. Kotsios and N. Kalouptsidis,

*"BIBO stability of certain nonlinear systems"*, to appear in Int. Journal of Control, vol. 58, no. 3, pp. 707-730, 1993.

N. Kalouptsidis,

*"Stability theory of nonlinear control systems"*, Proc. Int. Symp. in Measurement and Control MECO, Athens, 1978.N. Kalouptsidis,

*"Topological dynamics and stability of control systems"*, Proc. Int. Symp. on Mathematical theory of Networks and Systems, MTNS, 1979, Delft.N. Kalouptsidis,

*"Prolongation structure and stability of certain bilinear systems"*, Proc., Int. Conf. on Information Sciences and Systems, Patras, 1979.N. Kalouptsidis,

*"On equivalence and stability of nonlinear systems"*, Proc., Workshop on feedback and synthesis of linear and nonlinear systems, Rome, 1981.J. Tsinias and N. Kalouptsidis,

*"Output controllability of nonlinear systems"*, Proc. Int. Conf. on Measurement and Control, Tunis, 1982.J. Tsinias and N. Kalouptsidis,

*"Stabilizability of nonlinear control systems"*, Proc. 21st IEEE Int. Conf. on Decision and Control, Orlando, 1982.J. Tsinias and N. Kalouptsidis,

*"Singularity of nonlinear control systems"*, Proc. Int. Mediter. Electrotechnical Conf. Athens, 1983.N. Kalouptsidis,

*"Stability and attraction of systems"*, Proc. Int.Conf. on Inform. Sci., J. Hopkins, 1985.J. Tsinias, N. Kalouptsidis and A. Bacciotti,

*"Higher prolongations and stability properties of nonlinear systems"*, Proc. of 25th Int. IEEE Conf. on Decision and Control, Athens, 1986.A. Bacciotti, N. Kalouptsidis and J. Tsinias,

*"Topological dynamics of control systems"*, Theory and Applications of nonlinear control systems, C. I. Byrnes and A. Lindquist eds., North Holland, 1986.