1. Streetcar curve noise;Von Stappenbeck;Zeitschriff Vereinschaft Deutscher Ingenieuren,1974
2. Acoustic performance of tread damping on steel transit wheels;Swanson;B.F. Goodrich Company Report,1966
3. Presented at Inter-Noise 1972 Conference;Kirschner,1972
4. Wheel/rail noise and vibration;Remington;Department of Transportation Report No. UMTA-MA-06-0025-75-11,1975
5. Stockholm tackles the noise problem;Berglund;Railway Gazette International,1972