@misc{indiciaefaa50f91f53a,
  title = {Stable population analysis in periodic environments.},
  author = {R S Gourley},
  year = {1977},
  doi = {10.1016/0040-5809(77)90006-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/854861/},
  note = {Source identifier: 854861}
}