@misc{indiciae7be98dba3ab9,
  title = {Multiple authorship revisited: how much is enough?},
  author = {R D Powers and K K Calkins},
  year = {1998},
  doi = {10.1016/s0735-6757(98)90183-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/9827755/},
  note = {Source identifier: 9827755}
}