@misc{indiciae6d4be47e0c7c,
  title = {Phosphate glass electrode with good selectivity for alkaline-earth cations},
  author = {A.H. Truesdell and A. M. Pommer},
  year = {1963},
  doi = {10.1126/science.142.3597.1292},
  url = {https://pubs.usgs.gov/publication/70010803},
  note = {Source identifier: 70010803}
}