1. Ward C. P., Jani M., Dunnett S. Mechatronic bogies: what are the benefits of adoption and how do we reduce the risks? European Railway Review. http://www.europeanrailwayreview.com/23456/supplements/bogies-wheelsets-supplement/.
2. Condition monitoring opportunities using vehicle-based sensors;Ward;Proc. Inst. Mech. Eng. Part F,2011
3. The dynamics of railway vehicles from stephenson to carter;Wickens;Proc. Inst. Mech. Eng. Part F,1998
4. Bombadier. Innovation & technology: ORBITA predictive asset management, the future of fleet maintenance. 2016. http://www.bombardier.com/en/transportation/productsservices/services/innovation-technology.html.
5. Alstom. Trainlife service: Flexibility & partnership. 2016. http://www.alstom.com/Global/US/Resources/Documents/DownloadCentre/Brochure-TrainLifeServices.pdf.