@misc{indiciaea0fe660078ee,
  title = {Sibling and parent--offspring correlation estimation with variable family size.},
  author = {S Karlin and E C Cameron and P T Williams},
  year = {1981},
  doi = {10.1073/pnas.78.5.2664},
  url = {https://pubmed.ncbi.nlm.nih.gov/6942400/},
  note = {Source identifier: 6942400}
}