Timber <I>Versus</I> Metal Sleepers. Indian Forester, [S. l.], v. 14, n. 4, p. 162–164, DOI: 10.36808/if/1888/v14i4/14317. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/14317. Acesso em: 19 feb. 2026.