@misc{indiciae5b5f4d7b727b,
  title = {Topology changes in (2+1)-dimensional quantum gravity.},
  author = {Y Fujiwara and S Higuchi and A Hosoya and T Mishima and M Siino},
  year = {1991},
  doi = {10.1103/physrevd.44.1763},
  url = {https://pubmed.ncbi.nlm.nih.gov/10014056/},
  note = {Source identifier: 10014056}
}