@misc{indiciaef0c877d9beb0,
  title = {Space shuttle program. Expendable second stage reusable space shuttle booster. Volume 2: Technical summary. Book 2: Expendable second stage vehicle definition},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19730006140},
  note = {Source identifier: 19730006140}
}