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JOURNAL OF COMBINATORIAL THEORY SERIES A, 89 (1)., pp. 1-20.
TERMÉSZET VILÁGA, 131 (2)., pp. 14-18.
COMBINATORICA, 20 (4)., pp. 569-573.
thesis.
Springer, Berlin, pp. 91-120.
TypoTEX, Budapest, pp. 271-285.
JOURNAL OF COMBINATORIAL THEORY SERIES B, 76, pp. 280-290.
ACTA CYBERNETICA, 14 (1)., pp. 27-36.
Typotex, Budapest, pp. 349.
PUBLICATIONES MATHEMATICAE-DEBRECEN, 52 (3-4)., pp. 337-342.