@misc{indiciaeca69ae8764cf,
  title = {Physical look at vacuum fermionic charge.},
  author = {AP Polychronakos},
  year = {1987},
  doi = {10.1103/physrevd.35.1417},
  url = {https://pubmed.ncbi.nlm.nih.gov/9957800/},
  note = {Source identifier: 9957800}
}