HÂN, Nguyễn Đình; VINH, Hồ Ngọc; HUY, Phạm Trung; VÂN, Đỗ Long. An algorithm for testing whether a regular language is a code. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 27, n. 1, p. 1–8, 2012. DOI: 10.15625/1813-9663/27/1/457. Disponível em: https://jcc.vast.vn/jcc/article/view/457. Acesso em: 4 nov. 2025.