O’BRIEN, Paul F. An Ontology For Mobile Situation Aware Systems. Australasian Journal of Information Systems, Australia, v. 15, n. 2, 2009. DOI: 10.3127/ajis.v15i2.454. Disponível em: https://www.ajis.aaisnet.org/index.php/ajis/article/view/454. Acesso em: 11 nov. 2026.