1. [1] Avitabile, P. (2001). Experimental Modal Analysis. Sound and Vibration
2. [2] Anonymous, Modal Tips: Roving Hammer versus Roving Accelerometer. https://community.plm.automation.siemens.com/t5/Testing-Knowledge-Base/Modal-Tips-Roving-Hammer-versus-Roving-Accelerometer/ta-p/378619
3. [3] Ewins, D.J. (1995). Modal Testing: Theory and Practice, John Wiley and Sons, Inc. New York.
4. [4] Anonymous, How to calculate damping from a FRF?. https://community.plm.automation.siemens.com/t5/Testing-Knowledge-Base/How-to-calculate-damping-from-a-FRF/ta-p/355050
5. [5] He, J., Fu, Z. F. 2001. Modal analysis, Butterworth-Heinemann, Oxford.