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Parity of numbers of crossings for complete n-partite graphs. (English) Zbl 0322.05106

05C10 Planar graphs; geometric and topological aspects of graph theory
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[1] GUY R. K.: Crossing numbers of graphs. Graph theory and applications, Springer Lecture Notes in Mathematics 303, 1972, 111-124. · Zbl 0249.05107
[2] HARBORTH H.: Über die Kreuzungszahl vollständiger, n-geteilter Graphen. Math. Nachr. 48, 1971, 179-188. · Zbl 0219.05053
[3] KLEITMAN D. J.: The crossing number of K5,n. J. Combin. Theory 9, 1970, 315-323. · Zbl 0205.54401
[4] KOMAN M.: On the crossing numbers of graphs. Acta Univ. Carolinae, Math. Phys. 10, 1969, 9-46. · Zbl 0256.05103
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