1. European Commission, Green Paper “Future Noise Policy”, Brussels, November 1996.
2. Council Directive 96/48/EC, 23 July 1996, on the interoperability of the trans-European high-speed rail system, Official Journal of the European Communities L235 (1996) 6.
3. Directive 2001/16/EC of the European Parliament and of the Council of 19 March 2001 on the interoperability of the trans-European conventional rail system, Official Journal of the European Communities L110 (2001) 1.
4. P. Hübner, The Action Programme of UIC and CER on ‘abatement of railway noise emissions on goods trains’, Internoise 2001, The Hague.
5. European Commission, Directorate-General for Energy and Transport, Terms of reference for the working group on railway noise, Brussels, December 1999.