@misc{indiciae2eac7451e515,
  title = {Copulation dynamics. Out for the sperm count.},
  author = {P H Harvey and R M May},
  year = {1989},
  doi = {10.1038/337508a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/2644544/},
  note = {Source identifier: 2644544}
}