@misc{indiciae7ea702d29103,
  title = {A token system for a class of underachieving hyperactive children.},
  author = {P W Robinson and T J Newby and S L Ganzell},
  year = {1981},
  doi = {10.1901/jaba.1981.14-307},
  url = {https://pubmed.ncbi.nlm.nih.gov/7298540/},
  note = {Source identifier: 7298540}
}