@misc{indiciae7fb7b34e846b,
  title = {A multifilter phase-lock loop.},
  author = {Carden, F. and Thompson, W. E. and Cheng, E.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720026662},
  note = {Source identifier: 19720026662}
}