KHANG, Trần Đình. Rules of moving hedges and the subsumption property. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 24, n. 2, p. 97–106, 2012. DOI: 10.15625/1813-9663/24/2/1233. Disponível em: https://jcc.vast.vn/jcc/article/view/1233. Acesso em: 4 nov. 2025.