@misc{indiciae20309cd65a39,
  title = {Study of rectangular-guide-like structures for millimeter wave transmission Interim progress report, Aug. 1 - Oct. 31, 1967},
  author = {Tischer, F. J.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19680001566},
  note = {Source identifier: 19680001566}
}