BROWN, J. S.; DUGUID, P. The social life of information - Chapter two: Agents and angels. First Monday, [S. l.], v. 5, n. 4, 2000. DOI: 10.5210/fm.v5i4.739. Disponível em: https://journals.uic.edu/ojs/index.php/fm/article/view/739. Acesso em: 24 sep. 2021.