@misc{indiciaeafc85faaf3dc,
  title = {Trace elements in chemical evolution, I.},
  author = {K Kobayashi and C Ponnamperuma},
  year = {1985},
  doi = {10.1007/bf01808048},
  url = {https://pubmed.ncbi.nlm.nih.gov/4094751/},
  note = {Source identifier: 4094751}
}