@article{peckham_1884, 
  title={The Origin of Bitumens}, 
  volume={18}, 
  DOI={10.1038/scientificamerican09061884-4226asupp}, 
  number={453supp}, 
  publisher={Springer Nature}, 
  author={Peckham}, 
  year={1884}, 
  month={Sep}
  }