@misc{indiciae4a52e615b134,
  title = {Multiple pH levels in chromatograms.},
  author = {A A BITANCOURT and A P NOGUEIRA},
  year = {1959},
  doi = {10.1126/science.129.3341.99},
  url = {https://pubmed.ncbi.nlm.nih.gov/13615326/},
  note = {Source identifier: 13615326}
}