@misc{indiciaedaf34aa53db8,
  title = {Pulsars and the universal X-ray background.},
  author = {M V Apparao},
  year = {1970},
  doi = {10.1038/225836a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16056772/},
  note = {Source identifier: 16056772}
}