References
- Vijay K. Garg, Rao V. Dukkipati (1984), "Dynamics of Railway Vehicle Systems", Academic Press, PP.103-118
- A. H. Wickens (2003), "Fundamental of Rail Vehicle Dynamics", Swet & Zetlinger B.V, pp.6-16
- Ahmed A. Shabana (2007), "Railroad Vehicle Dynamics : A Computational Approach", CRC Press, PP.127-128