@misc{indiciae5b8296aa68c0,
  title = {Concurrent activities and instructed human fixed-interval performance.},
  author = {D Barnes and M Keenan},
  year = {1993},
  doi = {10.1901/jeab.1993.59-501},
  url = {https://pubmed.ncbi.nlm.nih.gov/8315367/},
  note = {Source identifier: 8315367}
}