1. Bode, H. W., Network Analysis and Feedback Amplifier Design, Van Nostrand, New York, 1945.
2. Boyd, S. P. and Barrett, C. H., Linear Controller Design: Limits of Performance, Prentice-Hall, Englewood Cliffs, New Jersey, 1991.
3. D?Azzo, J. J. and Houpis, C. H., Linear Control System Analysis and Design, 2nd edn., McGraw-Hill, New York, 1981.
4. Graham, D. and Lathrop, R. C., ?The synthesis of optimum responses: Criteria and standard forms?, AIEE Transactions Part II72, 1953, 273?288.
5. Hanzon, B., ?The area enclosed by the (oriented) Nyquist diagram and the Hilbert?Schmidt?Hankel norm of a linear system?, IEEE Transactions on Automatic Control37(6), 1992, 835?839.