References
- Eyrolles Le Rail Jeam Alias
- The Complete Books of Trains and Railways John Westwood
- Railway Mechanical Engineering: Car and Locomotive Design A Century of Progress ASME
- Proc. Instn. Mech Engrs. v.212 The Dynamics of Railway Vehicles-from Stephenson to Carter Wickens, A. H.
- Proc. Instn. Mech Engrs. v.21 The Long Road to Solution of the Railway Hunting and Curving Problems Gilchrist, A. O.