Demetrovics, János; Vu Duc Thi Some results about normal forms for functional dependency in the relational datamodel. (English) Zbl 0855.68025 Discrete Appl. Math. 69, No. 1-2, 61-74 (1996). MSC: 68P15 PDFBibTeX XMLCite \textit{J. Demetrovics} and \textit{Vu Duc Thi}, Discrete Appl. Math. 69, No. 1--2, 61--74 (1996; Zbl 0855.68025) Full Text: DOI
Demetrovics, János; Libkin, Leonid; Muchnik, Ilya B. Functional dependencies in relational databases: A lattice point of view. (English) Zbl 0767.68029 Discrete Appl. Math. 40, No. 2, 155-185 (1992). MSC: 68P15 06A12 PDFBibTeX XMLCite \textit{J. Demetrovics} et al., Discrete Appl. Math. 40, No. 2, 155--185 (1992; Zbl 0767.68029) Full Text: DOI
Demetrovics, János; Nguyen Xuan Huy Closed sets and translations of relation schemes. (English) Zbl 0714.68021 Comput. Math. Appl. 21, No. 1, 13-23 (1991). MSC: 68P15 68Q25 PDFBibTeX XMLCite \textit{J. Demetrovics} and \textit{Nguyen Xuan Huy}, Comput. Math. Appl. 21, No. 1, 13--23 (1991; Zbl 0714.68021) Full Text: DOI
Demetrovics, J.; Nguyen Xuan Huy Structure of closure in relational schemas with join and functional dependencies. (English. Russian original) Zbl 0800.68376 Cybernetics 26, No. 5, 641-653 (1990); translation from Kibernetika 1990, No. 5, 18-26 (1990). MSC: 68P15 PDFBibTeX XMLCite \textit{J. Demetrovics} and \textit{Nguyen Xuan Huy}, Cybernetics 26, No. 5, 641--653 (1990; Zbl 0800.68376); translation from Kibernetika 1990, No. 5, 18--26 (1990) Full Text: DOI