TUYEN, Tran Minh; THANG, Trinh Dinh; HUY, Nguyen Xuan. Some properties of the positive boolean dependencies in the database model of block form. <b>Journal of Computer Science and Cybernetics</b>, <i>[S. l.]</i>, v. 31, n. 2, p. 159–169, 2015. DOI: 10.15625/1813-9663/31/2/4978. Disponível em: https://jcc.vast.vn/jcc/article/view/4978. Acesso em: 4 nov. 2025.