@misc{indiciae06eba86c54be,
  title = {Space Launch System Progress Report},
  author = {Singer, Joan A. and Lyles, Gary M. and Beaman, David E. and Cook, Jerry R.},
  year = {2011},
  url = {https://ntrs.nasa.gov/citations/20120001641},
  note = {Source identifier: 20120001641}
}