1. Experimental studies on annoyance caused by noises from trams and buses;Sandrock;Journal of Sound and Vibration,2008
2. J. Lambert, Report on noise exposure of the population, health risks and social welfare costs, Proceedings of the Noise in Europe Conference, Paris, France, 2000.
3. Effects of road traffic noise and the benefit of access to quietness;Öhrström;Journal of Sound and Vibration,2006
4. Study SI2.408210 tyre/road noise, Technical Report, Forum of European National Highway Research Laboratories (FEHRL), 2006 〈http://ec.europa.eu/enterprise/automotive/projects〉.
5. U. Sandberg, J.A. Ejsmont, Tyre/road noise reference book, Informex, SE-59040, Kisa, Sweden, 2002.