@misc{indiciae38c8210cd04f,
  title = {Beamed energy for space craft propulsion - Conceptual status and development potential},
  author = {Sercel, Joel C. and Frisbee, Robert H.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880056748},
  note = {Source identifier: 19880056748}
}