@misc{indiciae2d742b7e8f3b,
  title = {A transistor instantaneous frequency meter.},
  author = {D G Green},
  year = {1967},
  doi = {10.1007/bf02479104},
  url = {https://pubmed.ncbi.nlm.nih.gov/6043989/},
  note = {Source identifier: 6043989}
}