@misc{indiciaef02708639b7b,
  title = {Subcarrier signal combiner for arrayed antennas},
  author = {Wilck, H. C. and Winkelstein, R. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19760000329},
  note = {Source identifier: 19760000329}
}