@misc{indiciae2bf9761ae10c,
  title = {Nuclear Cryogenic Propulsion Stage for Mars Exploration},
  author = {Houts, M. G. and Borowski, S. K. and George, J. A. and Kim, T. and Emrich, W. J. and Hickman, R. R. and Broadway, J. W. and Gerrish, H. P. and Adams, R. B.},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20120014604},
  note = {Source identifier: 20120014604}
}