TIWARI, K. M. Floating of Timber in the U.S.S.R. Indian Forester, [S. l.], v. 89, n. 5, p. 320–324, 1963. DOI: 10.36808/if/1963/v89i5/24886. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/24886. Acesso em: 4 dec. 2025.