@misc{indiciaed3d7587ad2c9,
  title = {A tuneable, bandwidth-adjustable solid-state filter},
  author = {Glaser, A. B. and Halkias, C. C. and Meadows, H. E.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19700036550},
  note = {Source identifier: 19700036550}
}