@misc{indiciaef94d43e1b3cc,
  title = {Microelectronic parametric amplifier.},
  author = {Block, A. and Bura, P. and Camisa, R. and Pan, W. Y. and Yuan, S.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680049415},
  note = {Source identifier: 19680049415}
}