@misc{indiciaed5e5e5077007,
  title = {Chemical sensors based on controlled-release polymer systems.},
  author = {S M Barnard and D R Walt},
  year = {1991},
  doi = {10.1126/science.2000492},
  url = {https://pubmed.ncbi.nlm.nih.gov/2000492/},
  note = {Source identifier: 2000492}
}