@misc{indiciaecfaf670ed6f2,
  title = {High efficiency GaAs solar cells},
  author = {Walker, G. H. and Conway, E. J. and Byvik, C. E.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780005599},
  note = {Source identifier: 19780005599}
}