@misc{indiciae17f9677867c1,
  title = {Normal-incidence soft X-ray telescopes},
  author = {Spiller, Eberhard and Mccorkle, R. A. and Wilczynski, J. S. and Golub, Leon and Nystrom, G. and Takacs, P. Z. and Welch, C.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910064265},
  note = {Source identifier: 19910064265}
}