@misc{indiciae8403de135c22,
  title = {A note on mixed group validation.},
  author = {R L Linn},
  year = {1967},
  doi = {10.1037/h0020420},
  url = {https://pubmed.ncbi.nlm.nih.gov/6047178/},
  note = {Source identifier: 6047178}
}