1. NP 109-04 Normativ privind proiectarea liniilor si statiilor de cale ferata pentru viteze pana la 200km/h.
2. http://www.profudegeogra.eu/vecinii-romaniei-proiect/, accessed 10.07.2022, 0900.
3. http://www.cfr.ro/files/ddr/en%202023/Annex%201.b.pdf, accessed 09.07.2022, 0900.
4. http://www.cfr.ro/files/ddr/en%202023/Annex%2012.pdf, accessed 09.07.2022, 0930.
5. European Union, Agency for Railways, Report Fostering the railway sector through the European Green deal,https://www.era.europa.eu/sites/default/files/events-news/docs/fostering_railway_sector_through_european_green_deal_en.pdf, accessed 13.07.2022, 1000.