@misc{indiciaee14648bab3c1,
  title = {Optimization of multi-layer front-contact grid patterns for solar cells},
  author = {Flat, A. and Milnes, A. G.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800028646},
  note = {Source identifier: 19800028646}
}