1. Ministry of Transport and Construction of the Slovak Republic (2020, December 28). Strategic Plan for the Development of Transport in the Slovak Republic until 2030, Available online: https://www.opii.gov.sk/.
2. (2020, December 29). White Paper. Roadmap to a Single European Transport Area—Towards a Competitive and Resource Efficient Transport System. Available online: https://ec.europa.eu/transport/themes/european-strategies/white-paper-2011_en.
3. Ministry of Transport and Construction of the Slovak Republic (2020, December 30). Public Passenger Transport 2030. Available online: https://www.mindop.sk/en.
4. European Environment Agency (2020, December 29). Greenhouse Gas Emissions from Transport in Europe. Available online: https://www.eea.europa.eu/data-and-maps/indicators/transport-emissions-of-greenhouse-gases.
5. Poelman, H., Dijkstra, L., and Ackermans, L. (2020). Rail Transport Performance in Europe: Developing a New Set of Regional and Territorial Accessibility Indicators for Rail, Publications Office of the European Union.