@misc{indiciaea242e93bc94f,
  title = {The Sahel problem.},
  author = {H Sinn},
  year = {1988},
  doi = {10.1111/j.1467-6435.1988.tb02306.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/12315680/},
  note = {Source identifier: 12315680}
}