@misc{indiciaefff518809495,
  title = {Group dynamics and external life cycles.},
  author = {H M FEINSTEIN and N E WAXLER},
  year = {1963},
  doi = {10.1080/00207284.1963.11642650},
  url = {https://pubmed.ncbi.nlm.nih.gov/13962753/},
  note = {Source identifier: 13962753}
}