1. Commission Implementing Regulation (EU) No 402/2013 of 30 April 2013 on the common safety method for risk evaluation and assessment and repealing Regulation (EC) No 352/2009 Text with EEA relevance. (Official Journal of the European Union. L121/8).
2. Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union. Text with EEA relevance. (Official Journal of the European Union. L138/44).
3. Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (recast).Text with EEA relevance. (Official Journal of the European Union. L138/102).
4. Directive 2012/34/EU of the European Parliament and of the Council of 21 November 2012 establishing a single European railway area (recast) Text with EEA relevance. (Official Journal of the European Union. L343/32).
5. Gędek, S. (2018). Definiowanie ryzyka. Prace Naukowe Uniwersytetu Ekonomicznego we Wrocławiu, 513, 119-130.