@misc{indiciae80fd22488940,
  title = {Multiple attractors in the response to a vaccination program.},
  author = {J L Aron},
  year = {1990},
  doi = {10.1016/0040-5809(90)90003-e},
  url = {https://pubmed.ncbi.nlm.nih.gov/2399511/},
  note = {Source identifier: 2399511}
}