RUDRA, A. B. A Modification of Von Mantel’s Formula. Indian Forester, [S. l.], v. 75, n. 11, p. 446–447, 1949. DOI: 10.36808/if/1949/v75i11/23140. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/23140. Acesso em: 4 dec. 2025.