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PUBLICATIONES MATHEMATICAE-DEBRECEN, 52 (3-4)., pp. 337-342.
In: 3. medzinarodna konferencia. Informatika '95. Bratislava, 1995..
ACTA SCIENTIARUM MATHEMATICARUM (SZEGED), 62, pp. 345-357.
DISCRETE APPLIED MATHEMATICS, 69 (1-2)., pp. 61-74.
COMPUTERS AND ARTIFICIAL INTELLIGENCE, 14 (3)., pp. 279-298.
COMPUTERS AND MATHEMATICS WITH APPLICATIONS, 29 (4)., pp. 101-109.
ACTA SCIENTIARUM MATHEMATICARUM (SZEGED), 60, pp. 213-223.
In: Database theory - ICDT '95. 5th international conference. Prague, 1995. (Lecture notes in computer science 893.).
In: Extremal problems for finite sets. Conference. Visegrád, 1991. (Bolyai Society mathematical studies 3.).
ACTA CYBERNETICA, 11 (3)., pp. 205-215.