References
- Bloem, Jaap., Doorn, Menno Van., Duivestein, Sander., Excoffier, David., Maas, Rene., Ommersen, Erik Van., "The fourth industrial revolution- Things to tighten the link between IT and OT", 2014, Sogeti VINT Production
- ARUP, "Future of Rail 2050", 2015
- International Transport Forum (2011) http://www.internationaltransportforum.org/Pub/pdf/110utlook.pdf
- R.A. SMITH, Energy Emissions Trade-Offs for High speed Trains, Proceedings of ART 2016, The Korean Society for Railway