@misc{indiciaec847ed7b689b,
  title = {Decoherence in quantum electrodynamics and quantum gravity.},
  author = {C Kiefer},
  year = {1992},
  doi = {10.1103/physrevd.46.1658},
  url = {https://pubmed.ncbi.nlm.nih.gov/10015077/},
  note = {Source identifier: 10015077}
}