RUẬN, Đặng Huy; QUẾ, Vũ Trọng. The finite automates complexity degree of a double-side regular expression. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 23, n. 2, p. 128–131, 2012. DOI: 10.15625/1813-9663/23/2/940. Disponível em: https://jcc.vast.vn/jcc/article/view/940. Acesso em: 4 nov. 2025.