@misc{indiciae6868fff9e20d,
  title = {Functional integrals and canonical quantum gravity.},
  author = {J Guven and MP Ryan},
  year = {1992},
  doi = {10.1103/physrevd.45.3559},
  url = {https://pubmed.ncbi.nlm.nih.gov/10014250/},
  note = {Source identifier: 10014250}
}