@misc{indiciae1067e51e9b9a,
  title = {Social systems intervention.},
  author = {P Polak},
  year = {1971},
  doi = {10.1001/archpsyc.1971.01750140014004},
  url = {https://pubmed.ncbi.nlm.nih.gov/5569448/},
  note = {Source identifier: 5569448}
}