Koumboulis FN, Skarpetis MG, Mertzios BG. Robust regional stabilisation of an electropneumatic actuator. IEE Proceedings-Control Theory and Applications. 1998;145:226–230.

Koumboulis FN, Skarpetis MG, Mertzios BG. Robust discretization algorithms for the numerical integration of nonlinear PDEs with application to a generalized capacitor. 1998.

Koumboulis FN, Skarpetis, G. M, Mertzios BG. On the derivation of the nonlinear discrete equations numerically integrating the Euler PDE. Discrete Dynamics in Nature and Society. 1998;2:41–51.

Koumboulis FN, Skarpetis MG, Griparis MK. Noninteracting control for helicopter in straight horizontal flight. In: Proceedings of the 1998 IEEE International Conference on Control Applications (Cat. No. 98CH36104). Vol. 1. IEEE; 1998. pp. 108–112.

Koumboulis FN, Skarpetis MG, Griparis MK. Rotary gust rejection for helicopters. In: Proceedings of the 1998 IEEE International Conference on Control Applications (Cat. No. 98CH36104). Vol. 1. IEEE; 1998. pp. 103–107.

Koumboulis FN, Skarpetis MG, Mertzios BG. On the derivation of the nonlinear discrete equations numerically integrating the Euler PDEs. Discrete Dynamics in Nature and Society. 1998;2:41–51.

Skarpetis MG. Control of linear systems with structured uncertainties. NTUA [Internet]. 1998. Publisher's Version