@misc{indiciae66afa34169f3,
  title = {Bidirectional Amplifier},
  author = {Holley, L. D. and Caldwell, J. W. and Ingalls, D. R.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770000150},
  note = {Source identifier: 19770000150}
}