@misc{indiciaecfa6e8f89a2b,
  title = {The genetic and environmental variance underlying elementary cognitive tasks.},
  author = {S A Petrill and L A Thompson and D K Detterman},
  year = {1995},
  doi = {10.1007/bf02197178},
  url = {https://pubmed.ncbi.nlm.nih.gov/7598663/},
  note = {Source identifier: 7598663}
}