HENRY, Michael. REVISITING OPEN GROUPS. Groupwork, [S. l.], v. 1, n. 3, p. 215–228, DOI: 10.1921/gpwk.v1i3.1376. Disponível em: https://journals.whitingbirch.net/index.php/GPWK/article/view/1376. Acesso em: 25 mar. 2026.