1. The transition from the wear to the stress regime;Tournay;Wear,1996
2. Squats and squat-type defects in rails: the understanding to date;Grassie;Proc. Inst. Mech. Eng. Part F,2011
3. A. Ekberg (Ed.), INNOTRACK Deliverable 4.2.6: Recommendation of, and Scientific Basis for Minimum Action Rules and Maintenance Limits, International Union of Railways, Paris, Technical Report, 2009. [Online] Available: 〈http://www.innotrack.eu〉
4. R. Deuce, Wheel Tread Damage—An Elementary Guide, Bombardier Transportation GmbH, Netphen, Germany, Technical Report, 2007.
5. UIC, UIC Code 712: Rail Defects, 2002.