@misc{indiciaedfbf964ce59f,
  title = {Flat-plate collector performance evaluation. The case for a solar simulation approach},
  author = {Simon, F. F. and Harlamert, P.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730023922},
  note = {Source identifier: 19730023922}
}