@misc{indiciae789c9f6529c7,
  title = {Apex locators: a systematic approach for usage.},
  author = {A B Einbinder and S I Kratchman},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8477424/},
  note = {Source identifier: 8477424}
}