@misc{indiciae0c30ebb802cf,
  title = {Flexible yet disciplined mission planning},
  author = {Huss, C. R. and Kraft, C. C., Jr. and Mayer, J. P. and Parten, R. P.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700047594},
  note = {Source identifier: 19700047594}
}