1. Reken- en Meetvoorschrift Railverkeerslawaai ’96, Ministerie Volkshuisvesting, Ruimtelijke Ordening en Milieubeheer, 20 November 1996 (Dutch railway noise calculation scheme 1996).
2. European Commission: Commission Recommendation of 6 August 2003 concerning the guidelines on the revised interim computation methods for industrial noise, aircraft noise, road traffic noise and railway noise, and related emission data, 2003/613/EC, 2003.
3. European Directive: Directive 2002/49/EC of the European Parliament and of the Council of 25 June 2002 relating to the assessment and management of environmental noise, 2002.
4. European Commission: Commission Recommendation 2003/613/EC of 6 August 2003 concerning the guidelines on the revised interim computation methods for industrial noise, aircraft noise, road traffic noise and railway noise, and related emission data, 2003.
5. Akron/Wölfel e.a.: Adaptation and revision of the interim noise computation methods for the purpose of strategic noise mapping: Railway Noise—Description of the calculation, Wölfel Consortium, 2001.