@misc{indiciae12f65c5a4be0,
  title = {Piezoelectric pecking key.},
  author = {F Altman and L D Hull},
  year = {1973},
  doi = {10.1901/jeab.1973.19-289},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811664/},
  note = {Source identifier: 16811664}
}