@misc{indiciaebb3e999c4eda,
  title = {Initial Test Firing Results for Solid CO/GOX Cryogenic Hybrid Rocket Engine for Mars ISRU Propulsion Applications},
  author = {Eric E Rice and Christopher P St Clair and Martin J Chiaverini and William H Knuth and Robert J Gustafson and Daniel J Gramer},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/19990054057},
  note = {Source identifier: 19990054057}
}