@misc{indiciae907210f76ac0,
  title = {[Fine structure of the developing down feather].},
  author = {C W KISCHER},
  year = {1963},
  doi = {10.1016/s0022-5320(63)90009-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/14041699/},
  note = {Source identifier: 14041699}
}