@misc{indiciae53e25df3657e,
  title = {Study of rectangular-guide-like structures for millimeter wave transmission Progress report, 1 Jun. - 30 Sep. 1970},
  author = {Tischer, F. J.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710001815},
  note = {Source identifier: 19710001815}
}