Reference:
  Author: Maximilian Kreuzer and Harald Skarke
  Title: "PALP: A Package for Analyzing Lattice Polytopes with Applications to Toric Geometry"
  Journal: Computer Physics Communications
  Year: 2004
  Volume: 157
  Pages: 87-106
  DOI: 10.1016/S0010-4655(03)00491-0
  URL: http://arxiv.org/abs/math/0204356
