@misc{indiciaec19b71b3c53c,
  title = {Threshold behavior.},
  author = {P A Levine},
  year = {1999},
  doi = {10.1111/j.1540-8159.1999.tb00397.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/10598981/},
  note = {Source identifier: 10598981}
}