@misc{indiciae98fdf2bdcf50,
  title = {Refractive Secondary Solar Concentrator Being Designed and Developed},
  author = {Macosko, Robert P. and Donovan, Richard M.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/20050180653},
  note = {Source identifier: 20050180653}
}