@misc{indiciae2c548f50a6aa,
  title = {Amber: a botanical inquiry.},
  author = {J H Langenheim},
  year = {1969},
  doi = {10.1126/science.163.3872.1157},
  url = {https://pubmed.ncbi.nlm.nih.gov/5765327/},
  note = {Source identifier: 5765327}
}