@misc{indiciae54cd001042cf,
  title = {Design of a ram accelerator mass launch system},
  author = {Aarnio, Michael and Armerding, Calvin and Berschauer, Andrew and Christofferson, Erik and Clement, Paul and Gohd, Robin and Neely, Bret and Reed, David and Rodriguez, Carlos and Swanstrom, Fredrick},
  year = {1988},
  url = {https://ntrs.nasa.gov/citations/19890006594},
  note = {Source identifier: 19890006594}
}