@misc{indiciae0c6738fbdff4,
  title = {Perceptual and conceptual categorization in stimulus generalization.},
  author = {D S Leventhal},
  year = {1968},
  doi = {10.2466/pms.1968.27.1.219},
  url = {https://pubmed.ncbi.nlm.nih.gov/5685697/},
  note = {Source identifier: 5685697}
}