@misc{indiciae7011d4560d98,
  title = {Preliminary evaluation of a space AMTEC power conversion system},
  author = {Crowley, Christopher J. and Sievers, Robert K.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19930029897},
  note = {Source identifier: 19930029897}
}