@misc{indiciae95a94865f54f,
  title = {The complexity of multiple variables.},
  author = {Patricia Hayes},
  year = {2002},
  doi = {10.1177/105477380201100301},
  url = {https://pubmed.ncbi.nlm.nih.gov/12180638/},
  note = {Source identifier: 12180638}
}