@misc{indiciae1cb5f825ceb4,
  title = {Parameter region for proper operation of a multifilter phase-lock loop.},
  author = {Carden, F. and Thompson, W. and Cheng, E. and Arndt, D.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720030528},
  note = {Source identifier: 19720030528}
}