@misc{indiciae058a7a05bcf8,
  title = {Compact Planar Microwave Blocking Filter},
  author = {U-yen, Kongpop and Wollack, Edward J.},
  year = {2008},
  url = {https://ntrs.nasa.gov/citations/20180000030},
  note = {Source identifier: 20180000030}
}