@misc{indiciaea4b549beca13,
  title = {Advanced launch vehicle computer program for horizontal takeoff vehicle, three-dimensional trajectories},
  author = {Conrad, D. P. and Perkins, T. E. and Von Puttkamer, J.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19690011396},
  note = {Source identifier: 19690011396}
}