KHANG, T. Đình. Rules of moving hedges and the subsumption property. Journal of Computer Science and Cybernetics, [S. l.], v. 24, n. 2, p. 97–106, 2012. DOI: 10.15625/1813-9663/24/2/1233. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/1233. Acesso em: 28 apr. 2024.