SMYTHIES, A. Durability of Railway Sleepers. Indian Forester, [S. l.], v. 17, n. 8, p. 312–313, DOI: 10.36808/if/1891/v17i8/14603. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/14603. Acesso em: 4 dec. 2025.