Railway Sleepers. Indian Forester, [S. l.], v. 55, n. 3, p. 180–182, 1929. DOI: 10.36808/if/1929/v55i3/19663. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/19663. Acesso em: 6 dec. 2025.