NIELSEN, J. E. Angling has Scientific Angles. Indian Forester, [S. l.], v. 61, n. 3, p. 207–211, 1935. DOI: 10.36808/if/1935/v61i3/20808. Disponível em: http://indianforester.co.in/index.php/indianforester/article/view/20808. Acesso em: 4 dec. 2025.