@misc{indiciae5b7b8bec3903,
  title = {Space Shuttle Main Engine (SSME) Evolution},
  author = {Worlund, Len A. and Hastings, J. H. and McCool, Alex},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20020022303},
  note = {Source identifier: 20020022303}
}