@misc{indiciae61e0e184095d,
  title = {An integrated printed circuit board (PCB) microphone},
  author = {J Hietanen and N Zacharov},
  year = {2000},
  doi = {10.1121/1.428895},
  url = {https://pubmed.ncbi.nlm.nih.gov/10830402/},
  note = {Source identifier: 10830402}
}