@misc{indiciae7696ac51105f,
  title = {Rocket trajectory optimization by a second- order numerical technique.},
  author = {Kelley, H. J. and Mckay, S. S., II and Uzzell, B. R.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690054165},
  note = {Source identifier: 19690054165}
}