@misc{indiciae8959c05dc9b5,
  title = {Peptide formation mediated by hydrogen cyanide tetramer - A possible prebiotic process},
  author = {Chang, S. and Flores, J. and Ponnamperuma, C.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700043086},
  note = {Source identifier: 19700043086}
}