@misc{indiciae621b4f307281,
  title = {Partially Transparent Petaled Mask/Occulter for Visible-Range Spectrum},
  author = {Shiri, Ron Shahram and Wasylkiwskyj, Wasyl},
  year = {2013},
  url = {https://ntrs.nasa.gov/citations/20140002281},
  note = {Source identifier: 20140002281}
}