THI, Vũ Đức; VINH, Trịnh Đình. alpha-functional dependencies and alpha-closure in the database model of block form. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 26, n. 2, p. 131–140, 2012. DOI: 10.15625/1813-9663/26/2/527. Disponível em: https://vjs.ac.vn/jcc/article/view/527. Acesso em: 5 dec. 2025.