1.Thi V Đức, Vinh T Đình. alpha-functional dependencies and alpha-closure in the database model of block form. J. Comput. Sci. Cybern. [Internet]. 2012 Apr. 27 [cited 2026 Jan. 12];26(2):131-40. Available from: https://jcc.vast.vn/jcc/article/view/527