@misc{indiciae08bd14068340,
  title = {Problems and progress in analytical methods.},
  author = {H Egan},
  year = {1971},
  doi = {10.1016/s0015-6264(71)80118-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4932865/},
  note = {Source identifier: 4932865}
}