@inproceedings{Dowdall:201379, author = "Dowdall, Rachel and Barrett, John and Fairbairn, Winston and Hellmann, Frank and Pereira, Roberto", title = "{Asymptotic analysis of Lorentzian spin foam models}", doi = "10.22323/1.140.0009", booktitle = "Proceedings of 3rd Quantum Gravity and Quantum Geometry School {\textemdash} PoS(QGQGS 2011)", year = 2013, volume = "140", pages = "009" }