@misc{indiciaed4fb01b09080,
  title = {Parametric amplification by unbiased Josephson junctions},
  author = {Feldman, M. J. and Parrish, P. T. and Chiao, R. Y.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19750059388},
  note = {Source identifier: 19750059388}
}