@misc{indiciae024ee0c49d4e,
  title = {High-efficiency concentration/multi-solar-cell system for orbital power generation},
  author = {Onffroy, J. R. and Stoltzmann, D. E. and Lin, R. J. H. and Knowles, G. R.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800064037},
  note = {Source identifier: 19800064037}
}