On cardinal numbers of sets of precomplete classes in limit-logics (in Russian). - János Demetrovics (Acta Cybern., 1972)

On the comparison of limit-logics by the simulation of finite-valued logic (in Russian). - János Demetrovics (Acta Cybern., 1976)

On the main diagonal of sheffer functions. - János Demetrovics (Discret. Math., 1978)

On the Number of Candidate Keys. - János Demetrovics (Inf. Process. Lett., 1978)

On the equivalence of candidate keys with Sperner systems. - János Demetrovics (Acta Cybern., 1979)

The cardinality of closed sets in pre-complete classes in k-valued logics. - János Demetrovics; László Hannák (Acta Cybern., 1979)

Contribution to the theory of data base relations. - A. Békéssy; János Demetrovics (Discret. Math., 1979)

On the number of maximal dependencies in a data base relation of fixed order. - A. Békéssy; János Demetrovics; László Hannák; Peter Frankl; Gyula O. H. Katona (Discret. Math., 1980)

Candidate Keys and Antichains. - János Demetrovics (SIAM J. Algebraic Discret. Methods, 1980)

Extremal Combinatorial Problems in Relational Data Base. - János Demetrovics; Gyula O. H. Katona (FCT, 1981)

On the functional dependency and some generalizations of it. - János Demetrovics; Gy. Gyepesi (Acta Cybern., 1981)

Specification Meta Systems. - János Demetrovics; Elöd Knuth; Péter Radó (Computer, 1982)

A note on minimal matrix representation of closure operations. - János Demetrovics; Gy. Gyepesi (Comb., 1983)

Some generalized type functional dependencies formalized as equality set on matrices. - János Demetrovics; Gy. Gyepesi (Discret. Appl. Math., 1983)

Minimum matrix representation of closure operations. - János Demetrovics; Zoltán Füredi; Gyula O. H. Katona (Discret. Appl. Math., 1985)

Information System Design: Techniques and Software Support - Response. - Elöd Knuth; János Demetrovics; Ágnes Hernádi (IFIP Congress, 1986)

Computer-Aided Specification Techniques - János Demetrovics; Elöd Knuth; Péter Radó (World Scientific, 1986)

On Transformation Properties of Conceptual Structures. - Elöd Knuth; János Demetrovics; Ágnes Hernádi (ISMIS, 1987)

Extremal Combinatorial Problems of Database Models. - János Demetrovics; Gyula O. H. Katona (MFDBS, 1987)

Translation of Relation Schemes, Balanced Relation Schemes and the Problem of Key Representation. - János Demetrovics; Ho Thuan; Nguyen Xuan Huy; Le Van Bao (J. Inf. Process. Cybern., 1987)

Construction of Large Sets of Clones. - János Demetrovics; László Hannák (Math. Log. Q., 1987)

LATOR - a Database Management System for Local Networks. - János Demetrovics; Gy. Gyepesi; László Hannák; Tibor Remzsö; F. Urbánszki (AIMSA, 1988)

Some results about functional dependencies. - János Demetrovics; Vu Duc Thi (Acta Cybern., 1988)

Relations and minimal keys. - János Demetrovics; Vu Duc Thi (Acta Cybern., 1988)

On Keys in the Relational Data Model. - János Demetrovics; Vu Duc Thi (J. Inf. Process. Cybern., 1988)

Functional Dependencies and the Semilattice of Closed Classes. - János Demetrovics; Leonid Libkin; Ilya B. Muchnik (MFDBS, 1989)

Intersections of Isotone Clones on a Finite Set. - János Demetrovics; Masahiro Miyakawa; Ivo G. Rosenberg; Dan A. Simovici; Ivan Stojmenovic (ISMVL, 1990)

On the Representation of Dependencies by Propositional Logic. - János Demetrovics; Lajos Rónyai; Hua nam Son (MFDBS, 1991)

On Relational Database Schemes Having Unique Minimal Key. - Joachim Biskup; János Demetrovics; Leonid Libkin; Ilya B. Muchnik (J. Inf. Process. Cybern., 1991)

On the Number of Databases and Closure Operations. - Gustav Burosch; János Demetrovics; Gyula O. H. Katona; Daniel J. Kleitman; Alexander A. Sapozhenko (Theor. Comput. Sci., 1991)

On the Composition and Decomposition of Attributes and Tuples. - János Demetrovics; Lajos Rónyai; Hua nam Son (ICDT, 1992)

On the Interaction Between Closure Operations and Choice Functions with Applications to Relational Database. - János Demetrovics; G. Hencsey; Leonid Libkin; Ilya B. Muchnik (Acta Cybern., 1992)

Normal Form Relation Schemes: A New Characterization. - János Demetrovics; G. Hencsey; Leonid Libkin; Ilya B. Muchnik (Acta Cybern., 1992)

A Note on Intersection of Isotone Clones. - János Demetrovics; Lajos Rónyai (Acta Cybern., 1992)

Partial Dependencies in Relational Databases and their Realization. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós (Discret. Appl. Math., 1992)

The Characterization of Branching Dependencies. - János Demetrovics; Gyula O. H. Katona; Attila Sali (Discret. Appl. Math., 1992)

Functional Dependencies in Relational Databases: A Lattice Point of View. - János Demetrovics; Leonid Libkin; Ilya B. Muchnik (Discret. Appl. Math., 1992)

Some Problems Concerning Armstrong Relations of Dual Schemes and Relation Schemes in the Relational Datamodel. - János Demetrovics; Vu Duc Thi (Acta Cybern., 1993)

A Survey of Some Combinatorial Results Concerning Functional Dependencies in Database Relations. - János Demetrovics; Gyula O. H. Katona (Ann. Math. Artif. Intell., 1993)

Functional Dependencies among Boolean Dependencies. - János Demetrovics; Lajos Rónyai; Hua nam Son (Ann. Math. Artif. Intell., 1993)

Some Problems Concerning Keys for Relation Schemes and Relations in the Relational Datamodel. - János Demetrovics; Vu Duc Thi (Inf. Process. Lett., 1993)

Enumeration of Function and Bases of Three-Valued Set Logic under compositions with Boolean Functions. - János Demetrovics; Corina Reischer; Dan A. Simovici; Ivan Stojmenovic (ISMVL, 1994)

Normal Forms and Minimal Keys in the Relational Datamodel. - János Demetrovics; Vu Duc Thi (Acta Cybern., 1994)

The Average Length of Keys and Functional Dependencies in (Random) Databases. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós; Oleg Seleznjev; Bernhard Thalheim (ICDT, 1995)

Some Remarks On Generating Armstrong And Inferring Functional Dependencies Relation. - János Demetrovics; Vu Duc Thi (Acta Cybern., 1995)

Armstrong Relations, Functional Dependencies and Strong Dependencies. - János Demetrovics; Vu Duc Thi (Comput. Artif. Intell., 1995)

Some Observations on the Minimal Armstrong Relations for Normalised Relation Schemes. - János Demetrovics; Vu Duc Thi (Comput. Artif. Intell., 1995)

Spreadsheet-Based Model Building and Multiple Criteria Group Evaluation Support. - Miklós Biró; János Demetrovics; Tibor Remzsö (ER Workshop Challenges of Application and Challenges of Design, 1996)

Some Results About Normal Forms for Functional Dependency in the Relational Datamodel. - János Demetrovics; Vu Duc Thi (Discret. Appl. Math., 1996)

Asymptotic Properties of Keys and Functional Dependencies in Random Databases. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós; Oleg Seleznjev; Bernhard Thalheim (Theor. Comput. Sci., 1998)

On 1-Representations of Integers. - János Demetrovics; Attila Pethö; Lajos Rónyai (Acta Cybern., 1999)

Describing Candidate Keys by Hypergraphs. - János Demetrovics; Vu Duc Thi (Comput. Artif. Intell., 1999)

Low Discrepancy Allocation of Two-Dimensional Data. - Richard P. Anstee; János Demetrovics; Gyula O. H. Katona; Attila Sali (FoIKS, 2000)

Error-Correcting Keys in Relational Databases. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós (FoIKS, 2000)

Functional Dependencies in Presence of Errors. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós (FoIKS, 2002)

Graphical Reasoning for Sets of Functional Dependencies. - János Demetrovics; András J. Molnár; Bernhard Thalheim (ER, 2004)

Relationship Design Using Spreadsheet Reasoning for Sets of Functional Dependencies. - János Demetrovics; András J. Molnár; Bernhard Thalheim (ADBIS, 2006)

On the Number of Independent Functional Dependencies. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós; Bernhard Thalheim (FoIKS, 2006)

On the security of individual data. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós (Ann. Math. Artif. Intell., 2006)

Functional dependencies distorted by errors. - János Demetrovics; Gyula O. H. Katona; Dezsö Miklós (Discret. Appl. Math., 2008)

Logical Representation of Dependencies of Items and the Complexity of Customer Sets. - János Demetrovics; Hua nam Son; Ákos Gubán (BCI (Local), 2012)

An Efficient Method to Reduce the Size of Consistent Decision Tables. - János Demetrovics; Hoang Minh Quang; Vu Duc Thi; Viet Anh Nguyen (Acta Cybern., 2018)