@misc{indiciaeab4b87997331,
  title = {Response efficiency during functional communication training: effects of effort on response allocation.},
  author = {D M Richman and D P Wacker and L Winborn},
  year = {2001},
  doi = {10.1901/jaba.2001.34-73},
  url = {https://pubmed.ncbi.nlm.nih.gov/11317991/},
  note = {Source identifier: 11317991}
}