@misc{indiciaea70deda4a8f1,
  title = {Air-Powered Projectile Launcher},
  author = {Andrews, T. and Bjorklund, R. A. and Elliott, D. G. and Jones, L. K.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870000034},
  note = {Source identifier: 19870000034}
}