1. White Paper—Roadmap to a single European transport area—towards a competitive and resource efficient transport system. URL
https://eur-lex.europa.eu/legal-content/SK/TXT/PDF/?uri=CELEX:52011DC0144&from=SK
2. Gergeľová M et al (2012) Prognóza vývoja dopravy a produkcie emisií z dopravy. Transfer inovácií. 24. URL
https://www.sjf.tuke.sk/transferinovacii/pages/archiv/transfer/24-2012/pdf/235-238.pdf
[In Slovak: A forecast of development of transport and production of emissions from transport]
3. Slovak Environment Agency—Sectoral indicator report—Transport. Transport and the environment in the Slovak Republic (2017). URL
http://www.enviroportal.sk/uploads/report/8063.pdf
4. Olivier JGJ et al (2016) Trends in global CO2 emissions: 2016 Report. European Commission, Joint Research Centre (JRC), Directorate C—Energy, Transport and Climate; PBL Netherlands Environmental Assessment Agency, The Hague. JRC103425, PBL2315. URL
http://edgar.jrc.ec.europa.eu/overview.php?v=CO2ts1990-2015&sort=des9
5. European Commission, Policies of the European Union (2014) Climate actions, Brussels. URL
https://europa.eu/european-union/topics/climate-action_sk