@misc{indiciae957f213f5208,
  title = {Planetary interchange of bioactive material: probability factors and implications.},
  author = {B C Clark},
  doi = {10.1023/a:1006757011007},
  url = {https://pubmed.ncbi.nlm.nih.gov/11296521/},
  note = {Source identifier: 11296521}
}