@misc{indiciaee19757c147e1,
  title = {Enabling the Space Exploration Initiative - NASA's Exploration Technology Program in space power},
  author = {Bennett, Gary L. and Cull, Ronald C.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910067749},
  note = {Source identifier: 19910067749}
}