@misc{indiciae7aca29da940b,
  title = {Time evolution in quantum cosmology},
  author = {Lawrie, Ian D},
  year = {2011},
  doi = {10.1103/physrevd.83.043503},
  url = {https://www.osti.gov/biblio/21504955},
  note = {Source identifier: 21504955}
}