1. Spurr R.T. (1971). Brake squeal I Mech E 95(71): 13–15
2. Spurr R.T. (1961). A theory of brake squeal. Proc. Auto. Div. I Mech E 62: 33–40
3. Xiaoyue C. (1988). A study on the judder of drum brakes. Tsing-Hua University, Beijing
4. Sinclair D. and Manville N.J. (1955). Frictional vibration. J. Appl. Mech. 22: 207–214
5. Chikaromis S. (1968). Study of brake noise. Mitsubishi Tech. Rev. 5(1): 23–28