@misc{indiciae2b6b74509de7,
  title = {A note on the concept endogenous-exogenous.},
  author = {M J Heron},
  year = {1965},
  doi = {10.1111/j.2044-8341.1965.tb00545.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5317894/},
  note = {Source identifier: 5317894}
}