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Reference
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.. _ref1:

1. Fox. R.L., Kapoor, M.P., “Rates of Change of Eigenvalues and Eigenvectors,” AIAA Journal, Vol. 6, No. 12, December 1968.

.. _ref2:

2. Nelson, R.B., “Simplified Calculation of Eigenvector Derivatives,” AIAA Journal, Vol. 14, No. 9, September 1976.

.. _ref3:

3. Liu, X.L., “Improved Calculation of Eigenvalue Variation in Dynamic System,” AIAA Journal, Vol. 39, No. 9, September, 2001.

.. _ref4:

4. Fanjoy, D.W., Beaver, A.K., Crossley, W.A., “Empirical Studies of Population Size and Parent Mixing for a Multi-Objective Genetic Algorithm,” Proceedings of 8th AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization, Long Beach, CA, September 2000.

.. _ref5:

5. MSC/NASTRAN User Manual, Volume 1, Section 1.15, “Design Sensitivity Analysis.”

.. _ref6:

6. MSC/NASTRAN Application Manual, Volume 2, Section 3.4, “Design Sensitivity Analysis in MSC/NASTRAN.”

.. _ref7:

7. Blelloch, P., “Cross-Orthogonality of Closely Spaced Modes,” 24th International Modal Analysis Conference, St. Louis, MO, 2006.