@misc{indiciaef5b4c4710def,
  title = {A precision DC-potentiometer microwave insertion-loss test set},
  author = {Petty, S. M. and Reid, M. S. and Stelzried, C. T.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660013519},
  note = {Source identifier: 19660013519}
}