BAILEY, W. A. Half Round Sleepers. Indian Forester, [S. l.], v. 54, n. 8, p. 444–447, 1928. DOI: 10.36808/if/1928/v54i8/19442. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/19442. Acesso em: 21 aug. 2025.