@misc{indiciaee2c1722f7c43,
  title = {Coarse-graining approach to quantum cosmology.},
  author = {E Calzetta and M Castagnino and R Scoccimarro},
  year = {1992},
  doi = {10.1103/physrevd.45.2806},
  url = {https://pubmed.ncbi.nlm.nih.gov/10014672/},
  note = {Source identifier: 10014672}
}