REFERENCES
- V. Krishnamurthy & V. Seshadri, A simple and direct method of reducing order of linear systems using Routh-approximations in frequency domain, IEEE Trans, vol AC-21, pp 797–799. Oct 1976.
- M.F. Hutton & B. Friedland, Routh approximations for reducing order for linear time-invariant systems, IEEE Trans, vol AC-20, pp 329–337, Jun 1975.
- F.R. Gautmacher, Applications of the theory of matrices, Interscience Publication Inc, NY, ISC Publication Ltd, London 1959.
- V. Krishnamurthy, Correlation between Routh's stability criterion and relative stability of linear systems, IEEE Trans, vol AC-17, pp 144–145, Feb 1972.