@misc{indiciaecd69d94e62f2,
  title = {Feather pattern development.},
  author = {P Sengel},
  year = {1975},
  doi = {10.1002/9780470720110.ch4},
  url = {https://pubmed.ncbi.nlm.nih.gov/1039917/},
  note = {Source identifier: 1039917}
}