BYRNE, Pat. Inside The Circle: Using Broadcast SMS In A Sports Club. Observatorio (OBS*), [S. l.], v. 1, n. 3, 2007. DOI: 10.15847/obsOBS132007144. Disponível em: https://obs.obercom.pt/index.php/obs/article/view/144. Acesso em: 28 mar. 2024.