@misc{indiciaeb841bb887e89,
  title = {Twin ionization current amplifiers and ratio-meter using solid-state modular devices.},
  author = {P W Walton},
  year = {1968},
  doi = {10.1088/0031-9155/13/2/413},
  url = {https://pubmed.ncbi.nlm.nih.gov/5649740/},
  note = {Source identifier: 5649740}
}