@misc{indiciaeb8ca04358702,
  title = {[Artefacts, acoustic phenomena and basic principles of echogram interpretations].},
  author = {V N Demidov and B I Zykin},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2685455/},
  note = {Source identifier: 2685455}
}