@misc{indiciae4fbf7d1bb825,
  title = {Note on the semiclassical approximation in quantum gravity.},
  author = {G Lifschytz and SD Mathur and M Ortiz},
  year = {1996},
  doi = {10.1103/physrevd.53.766},
  url = {https://pubmed.ncbi.nlm.nih.gov/10020058/},
  note = {Source identifier: 10020058}
}