@misc{indiciae96250a8d2101,
  title = {Low-cost point-focus solar concentrator, phase 1},
  author = {Nelson, E. V. and Derbidge, T. C. and Erskine, D. and Maraschin, R. A. and Niemeyer, W. A. and Matsushita, M. J. and Overly, P. T.},
  year = {1979},
  url = {https://ntrs.nasa.gov/citations/19800011345},
  note = {Source identifier: 19800011345}
}