Forest Research Institute and Colleges, Dehra Dun. Indian Forester, [S. l.], v. 94, n. 12, p. 903–934, 1968. DOI: 10.36808/if/1968/v94i12/25956. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/25956. Acesso em: 4 dec. 2025.