@misc{indiciae6d977c863afb,
  title = {Fermions in quantum cosmology.},
  author = {PD D'Eath and JJ Halliwell},
  year = {1987},
  doi = {10.1103/physrevd.35.1100},
  url = {https://pubmed.ncbi.nlm.nih.gov/9957764/},
  note = {Source identifier: 9957764}
}