@misc{indiciae6d40dc2385b0,
  title = {Techniques for shuttle trajectory optimization},
  author = {Edge, E. R. and Shieh, C. J. and Powers, W. F.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740006412},
  note = {Source identifier: 19740006412}
}