1. Shakhunyants G (1976) Work of track and its maintenance costs. In: Proceedings of MIIT, vol 491. MIIT, Moscow, pp 3–67
2. Shulga V (1965) The influence of operational factors, the capacity of the upper structure and its term of life on the track maintenance costs. In: Proceedings of CNII MPS, vol 182. Transport, Moscow, pp 136–197
3. Mishin V (2004) Probabilistic-statistical analysis of track bendings and twists. Vestnik VNIIZT № 4, pp 31–36
4. Mishin V (2011) Predicting of track condition indices. Problems and solutions. Railway Track and Facilities (Put i putevoe khozyaystvo), № 7, pp 2–6
5. Kumar S (2006) A study of the rail degradation process to predict rail breaks. Luleå University of Technology, Luleå