@misc{indiciae17480c897081,
  title = {A solid state fixed wavelength colorimeter for continuous-flow analyses.},
  author = {L Walker and E Amador},
  year = {1973},
  doi = {10.1016/0009-8981(73)90026-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4745362/},
  note = {Source identifier: 4745362}
}