@misc{indiciae9d51e2b09212,
  title = {Design parameters for overdriven varactor frequency doublers using punch-through or bimode varactors.},
  author = {Grayzel, A. I.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690059310},
  note = {Source identifier: 19690059310}
}