@misc{indiciae6df55c0c19cd,
  title = {Dual-frequency microwave antenna},
  author = {Bathker, D. A. and Brunstein, S. A. and Ludwig, A. C. and Potter, P. D.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19790000322},
  note = {Source identifier: 19790000322}
}