Hồ, N.C., Vinh, L.X. and Hào, N.C. 2012. Unify data end establish similarity relation in lingustic databases upon helge-algebra-based. Journal of Computer Science and Cybernetics. 25, 4 (May 2012), 314–332. DOI:https://doi.org/10.15625/1813-9663/25/4/582.