@misc{indiciaea32aef540aee,
  title = {Coplanar back contacts for thin silicon solar cells},
  author = {Thornhill, J. W. and Sipperly, W. E.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19800020359},
  note = {Source identifier: 19800020359}
}