@misc{indiciae471fd866d4e5,
  title = {X-ray and extreme ultraviolet imaging using layered synthetic microstructures},
  author = {Underwood, J. H. and Barbee, T. W. and Shealy, D. L.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19830031506},
  note = {Source identifier: 19830031506}
}