@misc{indiciae7a24582f41a1,
  title = {Multiple stable subharmonics for a periodic epidemic model.},
  author = {H L Smith},
  year = {1983},
  doi = {10.1007/bf00305758},
  url = {https://pubmed.ncbi.nlm.nih.gov/6886570/},
  note = {Source identifier: 6886570}
}