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References to 'multigraph'
1. ${k}$-connected graph by marijke
2. (closed) walk / trek / trail / path by marijke
3. adjacency matrix by CWoo
4. cycle by mps
5. diameter by marijke
6. example of planar graph with two different embeddings into the plane by archibal
7. finite projective plane by Mathprof
8. graph by mathcam
9. graph homomorphism by CWoo
10. incidence structure by CWoo
11. labeled graph by CWoo
12. loop by drini
13. path by CWoo
14. planar graph by archibal
15. properties of regular tetrahedron by pahio
16. pseudograph by Mathprof
17. quiver by mathangel
18. valency by marijke
19. Vizing's theorem by marijke