@misc{indiciae7af895e441a7,
  title = {A Penning discharge source for extreme ultraviolet calibration},
  author = {Finley, David S. and Jelinsky, Patrick and Bowyer, Stuart and Malina, Roger F.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19880025474},
  note = {Source identifier: 19880025474}
}