@misc{indiciae02e75bbd561b,
  title = {Role allocation and differentiation through time in medium-sized groups.},
  author = {G Marwell},
  year = {1968},
  doi = {10.1080/00224545.1968.9924849},
  url = {https://pubmed.ncbi.nlm.nih.gov/5642220/},
  note = {Source identifier: 5642220}
}