@misc{indiciaef9fd32d67341,
  title = {Conceptual study of a liquid-core nuclear rocket.},
  author = {Grey, J. and Nelson, S. T. and Williams, P. M.},
  year = {1965},
  url = {https://ntrs.nasa.gov/citations/19650041735},
  note = {Source identifier: 19650041735}
}