@misc{indiciaecfbf0cccb276,
  title = {Millimeter-Wave Quantum-Well Frequency Multipliers},
  author = {Batelaan, Paul D. and Frerking, Margaret A.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19900000441},
  note = {Source identifier: 19900000441}
}