@misc{indiciaea7104efc8912,
  title = {Comparison of A-scan device accuracy.},
  author = {U Giers and C Epple},
  year = {1990},
  doi = {10.1016/s0886-3350(13)80737-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/2329484/},
  note = {Source identifier: 2329484}
}