Toughness, hamiltonicity and split graphs

@article{Kratsch1996ToughnessHA,
  title={Toughness, hamiltonicity and split graphs},
  author={Dieter Kratsch and Jen{\"o} Lehel and Haiko M{\"u}ller},
  journal={Discret. Math.},
  year={1996},
  volume={150},
  pages={231-245}
}
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1-Tough cocomparability graphs are hamiltonian
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