Literaturverzeichnis
B. Alspach, M. Goldberg andJ. W. Moon, The group of the composition of two tournaments. Math. Mag.41, 77–80 (1968).
W.Dörfler und W.Imrich, Über die X-Summe von Mengensystemen. Proc. Colloquium on Combinatorial Mathematics, Balatonfüred 1969, im Druck.
F. Harary, On the group of the composition of two graphs. Duke Math. J.26, 29–34 (1959).
F.Harary, R.Norman and D.Cartwright, Structural Models. New York 1965.
R. L. Hemminger, The lexicographic product of graphs. Duke Math. J.33, 499–501 (1966).
R. L. Hemminger, The group of an X-join of graphs. J. Combinatorial Theory5, 408–418 (1968).
G. Sabidussi, The composition of graphs. Duke Math. J.26, 693–696 (1959).
G. Sabidussi, The lexicographic product of graphs. Duke Math. J.28, 573–578 (1961).
A. Zykov, Einige Eigenschaften linearer Komplexe. Mat. Sb.24, 163–188 (1949) (russisch); engl. Übersetzung: Amer. Math. Soc. Transi. Nr. 79, Providence 1952.
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Dörfler, W. Über die -Summe von gerichteten Graphen. Arch. Math 22, 24–36 (1971). https://doi.org/10.1007/BF01222533
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DOI: https://doi.org/10.1007/BF01222533