@misc{indiciaec12e371f6d3c,
  title = {High energy collimating fine grids for HESP program},
  author = {Eberhard, Carol D. and Frazier, Edward},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940020294},
  note = {Source identifier: 19940020294}
}