@misc{indiciaeb86e74a4a2e1,
  title = {Six-member stimulus classes generated by conditional-discrimination procedures.},
  author = {M Sidman and B Kirk and M Willson-Morris},
  year = {1985},
  doi = {10.1901/jeab.1985.43-21},
  url = {https://pubmed.ncbi.nlm.nih.gov/3156941/},
  note = {Source identifier: 3156941}
}