A remark on cancellation in direct products of graphs

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A remark on cancellation in direct products of graphs. (English). Časopis pro pěstování matematiky, vol. 114 (1989), issue 1, pp. 35-38

References:

[1] L. Lovász: Operations with structures. Acta Math. Acad, Sci. Hung. 18 (1967), 321-328. MR 0214529

[2] L. Lovász: On the cancellation law among finite relational stгuctures. Periodica Math. Hung. 1(1971), 145-156. MR 0284391

[3] V. Puš: Problem 14. Czechoslovak Conference on Graph Theory and Combinatorics, Raček Valley, May 1986 (unpublished).

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