1. SEMIBEL, Schriftenreihe Umweltschutz 116 (1990)
2. Federal Office of Environment Switzerland: sonRAIL Project Documentation (2010),
www.empa.ch/plugin/template/empa/102455
3. Thron, T., Hecht, M.: The sonRAIL emission model for railway noise in Switzerland. Acta Acustica 96, 873–883 (2010)
4. NNFM;M. Hecht,2012
5. Czolbe, C., Koepfli, M.: AIA-DAGA, sonRAIL Webtool application (2013)