@misc{indiciae183514a9e0fe,
  title = {Within group and between group variation expected in human behavioral characters.},
  author = {G Allen},
  year = {1972},
  doi = {10.1007/bf01066740},
  url = {https://pubmed.ncbi.nlm.nih.gov/4664198/},
  note = {Source identifier: 4664198}
}