@Article{HohlwegLange,
  author =          "Christophe Hohlweg AND Carsten Lange",
  title =           "{Realizations of the associahedron and cyclohedron}",
  journal =         "Discrete Comput. Geom.",
  year =            "2007",
  volume =          "37",
  pages =           "517-543"
}