Facets of the Generalized Permutahedron of a Poset

@article{Arnim1997FacetsOT,
  title={Facets of the Generalized Permutahedron of a Poset},
  author={Annelie von Arnim and Andreas S. Schulz},
  journal={Discrete Applied Mathematics},
  year={1997},
  volume={72},
  pages={179-192}
}