@misc{indiciaeaca68146879b,
  title = {Behavioral engineering: postural control by a portable operant apparatus.},
  author = {N Azrin and H Rubin and F O'brien and T Ayllon and D Roll},
  year = {1968},
  doi = {10.1901/jaba.1968.1-99},
  url = {https://pubmed.ncbi.nlm.nih.gov/16795176/},
  note = {Source identifier: 16795176}
}