@misc{indiciaec2e9c43b8ea0,
  title = {Cycles in social behaviour.},
  author = {M Young and J Ziman},
  year = {1971},
  doi = {10.1038/229091a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4923114/},
  note = {Source identifier: 4923114}
}