@misc{indiciae9f3ff901eaf9,
  title = {Selective Absorption of Starlight by Interstellar Clouds.},
  author = {F H Seares},
  year = {1936},
  doi = {10.1073/pnas.22.6.327},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588076/},
  note = {Source identifier: 16588076}
}