1. S.W. Doebling, C.R. Farrar, M.B. Prime, D.W. Shevitz, Damage identification and health monitoring of structural and mechanical systems from changes in their vibration characteristics: a literature review, Technical Report, Los Alamos National Lab., NM (United States), 1996.
2. H. Sohn, C.R. Farrar, F.M. Hemez, D.D. Shunk, D.W. Stinemates, B.R. Nadler, J.J. Czarnecki, A review of structural health monitoring literature: 1996–2001, 2004.
3. A. Rytter, Vibration based inspection of civil structures, Ph.D. thesis, Dept. of Building Technology and structural engineering, Aalborg University, Aalborg, Denmark, 1993.
4. Introduction to Operational Modal Analysis;Brincker,2015