@inproceedings{Fairbairn:2013Cl, author = "Fairbairn, Winston and Meusburger, Catherine", title = "{Quantum deformation of two four-dimensional spin foam models}", doi = "10.22323/1.140.0017", booktitle = "Proceedings of 3rd Quantum Gravity and Quantum Geometry School {\textemdash} PoS(QGQGS 2011)", year = 2013, volume = "140", pages = "017" }