VĨNH, H. N.; HUY, P. T.; VÂN, Đỗ L. Extension of codes and algorithms for alternative codes and codes of bounded words. Journal of Computer Science and Cybernetics, [S. l.], v. 26, n. 4, p. 301–311, 2012. DOI: 10.15625/1813-9663/26/4/504. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/504. Acesso em: 6 may. 2024.