@misc{indiciae29703d32bd09,
  title = {Concept difficulty as a function of stimulus similarity.},
  author = {L Sechrest and J S Kaas},
  year = {1965},
  doi = {10.1037/h0022669},
  url = {https://pubmed.ncbi.nlm.nih.gov/5839792/},
  note = {Source identifier: 5839792}
}