@article{Fairbairn:2013Cl,
  author = "Fairbairn, Winston  and  Meusburger, Catherine",
  title = "{Quantum deformation of two four-dimensional spin foam models}",
  doi = "10.22323/1.140.0017",
  journal = "PoS",
  year = 2013,
  volume = "QGQGS 2011",
  pages = "017"
}