@misc{indiciae461933c81bc0,
  title = {Improved RF calibration techniques - dc potentiometer microwave insertion loss test set},
  author = {Mullen, D. and Stelzried, C. T.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660029266},
  note = {Source identifier: 19660029266}
}