@misc{indiciae78237f35bc5e,
  title = {Long-term studies of different techniques.},
  author = {G E Shambaugh},
  year = {1969},
  doi = {10.1001/archotol.1969.00770020406031},
  url = {https://pubmed.ncbi.nlm.nih.gov/5763940/},
  note = {Source identifier: 5763940}
}