ĐỊNH, N. V. On the desirability of omega-acyclic database schemes. Journal of Computer Science and Cybernetics, [S. l.], v. 17, n. 3, p. 53–59, 2012. DOI: 10.15625/1813-9663/17/3/2626. Disponível em: https://vjs.ac.vn/index.php/jcc/article/view/2626. Acesso em: 4 dec. 2024.