@misc{indiciaee8b832c7c7a8,
  title = {A Short Period Cepheid with Variable Spectrum.},
  author = {H Shapley},
  year = {1916},
  doi = {10.1073/pnas.2.3.132},
  url = {https://pubmed.ncbi.nlm.nih.gov/16576126/},
  note = {Source identifier: 16576126}
}