@misc{indiciaec3a81bb3920a,
  title = {A distributed lumped active all-pass network configuration.},
  author = {Huelsman, L. P. and Raghunath, S.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720047842},
  note = {Source identifier: 19720047842}
}