1. Stamos, I., Myrovali, G., & Aifadopoulou, G. (2016). Formulation of a roadmap towards the enhancement of international rail passenger transport – The South East Europe example. Journal of Rail Transport Planning and Management, 6(2), 89–98.
2. Evans, A. W., & Morrison, A. D. (1997). Incorporating accident risk and disruption in economic models of public transport. Journal of Transport, Economics and Policy, 2541, 46–55.
3. Lan, L. W., & Lin, E. T. J. (2006). Performance measurement for railway transport: Stochastic distance functions with inefficiency and ineffectiveness effects. Journal of Transport, Economics and Policy, 40, 383–408.
4. Munda, G. (2004). Social multi-criteria evaluation: Methodological foundations and operational consequences. European Journal of Operational Research, 158, 662–677.
5. Jorge, J., & Suarez, C. (2003). Has the efficiency of European railway companies been improved? European Business Review, 15, 213–220.