@misc{indiciaeb9ea03cf177f,
  title = {Solar cell shingle},
  author = {Forestieri, A. F. and Ratajczak, A. F. and Sidorak, L. G.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770024657},
  note = {Source identifier: 19770024657}
}