@misc{indiciaec64c704ec05a,
  title = {Calcium-selective electrode with liquid ion exchanger.},
  author = {J W Ross},
  year = {1967},
  doi = {10.1126/science.156.3780.1378},
  url = {https://pubmed.ncbi.nlm.nih.gov/5610120/},
  note = {Source identifier: 5610120}
}