@misc{indiciaed26eb628fbbb,
  title = {Evolutionary theory. Mutualism on the move.},
  author = {P Hammerstein and R F Hoekstra},
  year = {1995},
  doi = {10.1038/376121a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/7603558/},
  note = {Source identifier: 7603558}
}