@misc{indiciaec71a6ff20f64,
  title = {Photovoltaic power systems.},
  author = {Goldsmith, J. and Menetrey, W. R. and Winsor, K. L.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19680039624},
  note = {Source identifier: 19680039624}
}