@misc{indiciaefefd5b9a5dd8,
  title = {Telescoping Shield for Point-Focusing Solar Concentrators},
  author = {Argoud, M. and Walker, W. and Butler, L. V.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19840000283},
  note = {Source identifier: 19840000283}
}