@misc{indiciae3b31ca8d688a,
  title = {The evolution of cooperation.},
  author = {Joel L Sachs and Ulrich G Mueller and Thomas P Wilcox and James J Bull},
  year = {2004},
  doi = {10.1086/383541},
  url = {https://pubmed.ncbi.nlm.nih.gov/15232949/},
  note = {Source identifier: 15232949}
}