@misc{indiciae7620713bb58d,
  title = {Making Ultrathin Solar Cells},
  author = {Cogan, George W. and Christel, Lee A. and Merchant, J. Thomas and Gibbons, James F.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910000024},
  note = {Source identifier: 19910000024}
}