@misc{indiciae1d8ff94576c3,
  title = {Mass extinctions and supernova explosions.},
  author = {P J Crutzen and C Brühl},
  year = {1996},
  doi = {10.1073/pnas.93.4.1582},
  url = {https://pubmed.ncbi.nlm.nih.gov/11607631/},
  note = {Source identifier: 11607631}
}