@misc{indiciaec09b3a9e0712,
  title = {A micro-pH electrode system suitable for routine laboratory use.},
  author = {N JOELS and J I MACNAUGHTON},
  year = {1957},
  url = {https://pubmed.ncbi.nlm.nih.gov/13398977/},
  note = {Source identifier: 13398977}
}