BIALON, A.; TRUN, A. REQUIREMENTS PKP 200 AND 250 KM/H. Science and Transport Progress , [S. l.], n. 13, p. 49–52, 2006. DOI: 10.15802/stp2006/18241. Disponível em: https://stp.ust.edu.ua/article/view/18241. Acesso em: 5 jun. 2025.