Ooguri, Hiroshi (1992). "Partition Functions and Topology-Changing Amplitudes in the 3D Lattice Gravity of Ponzano and Regge". Nuclear Physics B. 382 (2) (published September 1992): 276–304. arXiv:hep-th/9112072. doi:10.1016/0550-3213(92)90188-H. S2CID12824742.
Ooguri, Hiroshi (1992). "Partition Functions and Topology-Changing Amplitudes in the 3D Lattice Gravity of Ponzano and Regge". Nuclear Physics B. 382 (2) (published September 1992): 276–304. arXiv:hep-th/9112072. doi:10.1016/0550-3213(92)90188-H. S2CID12824742.
Ooguri, Hiroshi (1992). "Partition Functions and Topology-Changing Amplitudes in the 3D Lattice Gravity of Ponzano and Regge". Nuclear Physics B. 382 (2) (published September 1992): 276–304. arXiv:hep-th/9112072. doi:10.1016/0550-3213(92)90188-H. S2CID12824742.