@misc{indiciae1224bd58c5e3,
  title = {Space and earth sciences. The big view.},
  author = {R W Porter},
  year = {1971},
  doi = {10.1111/j.1749-6632.1971.tb41303.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5286642/},
  note = {Source identifier: 5286642}
}