CRIEL, J.; CLAEYS, L. A Transdisciplinary Study Design on Context-aware Applications and Environments. Observatorio (OBS*), [S. l.], v. 2, n. 2, 2008. DOI: 10.15847/obsOBS222008202. Disponível em: https://obs.obercom.pt/index.php/obs/article/view/202. Acesso em: 1 dec. 2022.