1. Chen WK (1995) The circuits and filters handbook. IEEE Press, New York
2. Cllement PR (1963) On completeness of basis function used for signal analysis. SIAM Rev 5(2):167–172
3. Descoer CA, Vidyasager M (1995) Feedback systems: intput-output properites. Academic Press, New York
4. D’Angelo H (1970) Linear time-varying systems. Analysis and synthesis. Allyn and Bacon Inc, Boston
5. Piwowar A (2011) Analysis of parametric systems consist in the first and he second order sections, Ph.D. thesis, Gliwice