1. Biggs JM (1964) Introduction to structural dynamics. McGraw-Hill, New York
2. Bishop RED, Gladwell GML, Michaelson S (1965) The matrix analysis of vibration. Cambridge University Press, London
3. Meirovitch L (1967) Analytical methods in vibrations. Collier-McMillan, London
4. Clough RW, Penzien J (1993) Dynamics of structures, 2nd edn. McGraw-Hill, New York
5. Chopra AK (2001) Dynamics of structures: theory and applications to earthquake engineering. Prentice-Hall, Upper Saddle River