@misc{indiciaedc48ab40abd8,
  title = {Recent developments in refractive concentrators for space photovoltaic power systems},
  author = {Piszczor, Michael F. and Oneill, Mark J.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940006930},
  note = {Source identifier: 19940006930}
}