THI, V. Đức; SƠN, L. C. On the Boyce - Codd normal form for relation scheme. Journal of Computer Science and Cybernetics, [S. l.], v. 16, n. 1, p. 15–17, 2013. DOI: 10.15625/1813-9663/16/1/2846. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/2846. Acesso em: 3 may. 2024.