@misc{indiciaefb7a89caa38c,
  title = {A manual optimal guidance scheme using a predictive model.},
  author = {Gilchrist, J. D. and Soland, D. E.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680062133},
  note = {Source identifier: 19680062133}
}