@misc{indiciaebfb68ccc99b5,
  title = {Acoustic microscope operating at 100 MHz.},
  author = {A Korpel and L W Kessler and P R Palermo},
  year = {1971},
  doi = {10.1038/232110a0},
  url = {https://pubmed.ncbi.nlm.nih.gov/16062866/},
  note = {Source identifier: 16062866}
}