@misc{indiciae15ef10feb53c,
  title = {Optics for future solar system exploration},
  author = {Norris, D. D. and Vescelus, F. E. and Wellman, J. B.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19810041557},
  note = {Source identifier: 19810041557}
}