ANH, Nguyễn Kim. A data model for quantified queries. Journal of Computer Science and Cybernetics, [S. l.], v. 24, n. 1, p. 42–49, 2012. DOI: 10.15625/1813-9663/24/1/1227. Disponível em: https://vjs.ac.vn/jcc/article/view/1227. Acesso em: 5 dec. 2025.