@inproceedings{Catterall:2011JW,
  author = "Catterall, Simon",
  title = "{Topological gravity on a lattice}",
  doi = "10.22323/1.105.0248",
  booktitle = "Proceedings of The XXVIII International Symposium on Lattice Field Theory {\textemdash} PoS(Lattice 2010)",
  year = 2011,
  volume = "105",
  pages = "248"
}