@misc{indiciaea889c8c421d8,
  title = {Laser thermal propulsion},
  author = {Keefer, D. and Elkins, R. and Peters, C. and Jones, L.},
  year = {1984},
  url = {https://ntrs.nasa.gov/citations/19840049271},
  note = {Source identifier: 19840049271}
}