ASPENGREN, Hans. Forest and Forestry in Sweden. Indian Forester, [S. l.], v. 95, n. 2, p. 71–74, 1969. DOI: 10.36808/if/1969/v95i2/26047. Disponível em: https://indianforester.co.in/index.php/indianforester/article/view/26047. Acesso em: 21 aug. 2025.