1. Working Group on Railway Noise, Position Paper on the European Strategies and priorities for railway noise abatement, European Commission, Version 19403
2. Thompson, D.J., et al.: Project A3 – Railway noise: curve squeal, roughness growth, friction and wear – start up study, Rail Research UK (June 2003)
3. Kerr, M., Kalousek, J., Elliot, G., Mau, F., Anderson, D.: Squeal Appeal: Addressing Noise at the Wheel / Rail Interface. In: Conference on Railway Engineering, Rockhampton (1998)
4. Cowley, A., Kopke, U., Lindqvist, P., Hamilton, R., Rennsion, D., Southern, C., Sowden, M.: Operating the RailSqad wheel-rail noise monitoring system. In: 7th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems (2006)
5. Kerr, M., Lak, A.: Wheel squeal problems solved: a trackside solution. In: RTSAconference (1999)