@misc{indiciae47485c80c3b3,
  title = {Emission-line objects projected upon the galactic bulge.},
  author = {G H Herbig},
  year = {1969},
  doi = {10.1073/pnas.63.4.1045},
  url = {https://pubmed.ncbi.nlm.nih.gov/16578699/},
  note = {Source identifier: 16578699}
}