@misc{indiciae207528e7156a,
  title = {Nuclear rockets based on graphite reactor technology - Their applications and development status},
  author = {Finger, H. B. and Johnson, P. G. and Morrissey, J. and Siegel, A. R.},
  year = {1964},
  url = {https://ntrs.nasa.gov/citations/19660007674},
  note = {Source identifier: 19660007674}
}