@misc{indiciae4a24ea0f05e2,
  title = {Stimulus generalization and equivalence classes: a model for natural categories.},
  author = {L Fields and K F Reeve and B J Adams and T Verhave},
  year = {1991},
  doi = {10.1901/jeab.1991.55-305},
  url = {https://pubmed.ncbi.nlm.nih.gov/2066703/},
  note = {Source identifier: 2066703}
}