@misc{indiciae97a55a6c6b6a,
  title = {Basic mechanisms governing solar-cell efficiency},
  author = {Lindholm, F. A. and Neugroschel, A. and Sah, C. T.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19770066208},
  note = {Source identifier: 19770066208}
}