ÖZTÜRK, Z.; ÖZTÜRK, T. Comparison of Railway Infrastructures with and without Ballast Referring to the Istanbul Metro System. ITU ARI Bulletin of Istanbul Technical University, [S. l.], v. 54, n. 01, p. 85–90, 2004. Disponível em: https://ari.itu.edu.tr/index.php/ituari/article/view/12. Acesso em: 29 mar. 2024.