@misc{indiciaec40b5b6289fb,
  title = {Performance improvements in silicon flat-plate cells and modules},
  author = {Spitzer, M. B. and Geoffroy, L. M. and Nowlan, M. J. and Keavney, C. J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870053973},
  note = {Source identifier: 19870053973}
}