@misc{indiciae71927f9f6a5c,
  title = {A dual chamber Gregorian subreflector system for compact range applications},
  author = {Pistorius, Carl W. I. and Clerici, Giancarlo C. and Burnside, Walter D.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890049821},
  note = {Source identifier: 19890049821}
}