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"Longest cycles in 3-connected graphs contain three contractible edges."
Nathaniel Dean, Robert L. Hemminger, Katsuhiro Ota (1989)
- Nathaniel Dean, Robert L. Hemminger, Katsuhiro Ota:
Longest cycles in 3-connected graphs contain three contractible edges. J. Graph Theory 13(1): 17-21 (1989)
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